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Finding the Fourth Proportional to 71,366.94, 98,487.14 and 39,537.72

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Solution

The fourth proportional to 71,366.94, 98,487.14 and 39,537.72 is: 54,562.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,366.94 : 98,487.14 = 39,537.72 : x
  2. Step 2: Convert to fraction form
    71,366.94/98,487.14 = 39,537.72/x
  3. Step 3: Cross multiply
    71,366.94x = 98,487.14 × 39,537.72
  4. Step 4: Simplify right side
    71,366.94x = 3,893,956,964.92
  5. Step 5: Solve for x
    x = 3,893,956,964.92/71,366.94
  6. Step 6: Final answer
    x = 54,562.48

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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.