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Finding the Fourth Proportional to 7,244,677.60, 10,867,016.40 and 7,150,199.20

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Solution

The fourth proportional to 7,244,677.60, 10,867,016.40 and 7,150,199.20 is: 10,725,298.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,244,677.60 : 10,867,016.40 = 7,150,199.20 : x
  2. Step 2: Convert to fraction form
    7,244,677.60/10,867,016.40 = 7,150,199.20/x
  3. Step 3: Cross multiply
    7,244,677.60x = 10,867,016.40 × 7,150,199.20
  4. Step 4: Simplify right side
    7,244,677.60x = 77,701,331,969,666.89
  5. Step 5: Solve for x
    x = 77,701,331,969,666.89/7,244,677.60
  6. Step 6: Final answer
    x = 10,725,298.80

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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.