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Finding the Fourth Proportional to 7,244,486.70, 10,866,730.05 and 7,132,512.30

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Solution

The fourth proportional to 7,244,486.70, 10,866,730.05 and 7,132,512.30 is: 10,698,768.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,244,486.70 : 10,866,730.05 = 7,132,512.30 : x
  2. Step 2: Convert to fraction form
    7,244,486.70/10,866,730.05 = 7,132,512.30/x
  3. Step 3: Cross multiply
    7,244,486.70x = 10,866,730.05 × 7,132,512.30
  4. Step 4: Simplify right side
    7,244,486.70x = 77,507,085,742,404.62
  5. Step 5: Solve for x
    x = 77,507,085,742,404.62/7,244,486.70
  6. Step 6: Final answer
    x = 10,698,768.45

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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.