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Finding the Fourth Proportional to 71,344.92, 98,461.56 and 39,516.84

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Solution

The fourth proportional to 71,344.92, 98,461.56 and 39,516.84 is: 54,536.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,344.92 : 98,461.56 = 39,516.84 : x
  2. Step 2: Convert to fraction form
    71,344.92/98,461.56 = 39,516.84/x
  3. Step 3: Cross multiply
    71,344.92x = 98,461.56 × 39,516.84
  4. Step 4: Simplify right side
    71,344.92x = 3,890,889,712.67
  5. Step 5: Solve for x
    x = 3,890,889,712.67/71,344.92
  6. Step 6: Final answer
    x = 54,536.32

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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.