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Finding the Fourth Proportional to 10,866,645.90, 16,299,968.85 and 10,045,500.30

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Solution

The fourth proportional to 10,866,645.90, 16,299,968.85 and 10,045,500.30 is: 15,068,250.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,866,645.90 : 16,299,968.85 = 10,045,500.30 : x
  2. Step 2: Convert to fraction form
    10,866,645.90/16,299,968.85 = 10,045,500.30/x
  3. Step 3: Cross multiply
    10,866,645.90x = 16,299,968.85 × 10,045,500.30
  4. Step 4: Simplify right side
    10,866,645.90x = 163,741,341,972,665.66
  5. Step 5: Solve for x
    x = 163,741,341,972,665.66/10,866,645.90
  6. Step 6: Final answer
    x = 15,068,250.45

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.