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Finding the Fourth Proportional to 71,344.55, 98,461.08 and 39,516.41

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Solution

The fourth proportional to 71,344.55, 98,461.08 and 39,516.41 is: 54,535.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,344.55 : 98,461.08 = 39,516.41 : x
  2. Step 2: Convert to fraction form
    71,344.55/98,461.08 = 39,516.41/x
  3. Step 3: Cross multiply
    71,344.55x = 98,461.08 × 39,516.41
  4. Step 4: Simplify right side
    71,344.55x = 3,890,827,914.02
  5. Step 5: Solve for x
    x = 3,890,827,914.02/71,344.55
  6. Step 6: Final answer
    x = 54,535.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.