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Finding the Fourth Proportional to 13,853,217.20, 20,732,586.60 and 13,853,217.20

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Solution

The fourth proportional to 13,853,217.20, 20,732,586.60 and 13,853,217.20 is: 20,732,586.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,853,217.20 : 20,732,586.60 = 13,853,217.20 : x
  2. Step 2: Convert to fraction form
    13,853,217.20/20,732,586.60 = 13,853,217.20/x
  3. Step 3: Cross multiply
    13,853,217.20x = 20,732,586.60 × 13,853,217.20
  4. Step 4: Simplify right side
    13,853,217.20x = 287,213,025,287,609.50
  5. Step 5: Solve for x
    x = 287,213,025,287,609.50/13,853,217.20
  6. Step 6: Final answer
    x = 20,732,586.60

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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.