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Finding the Fourth Proportional to 71,517.58, 107,277.16 and 21,598.10

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Solution

The fourth proportional to 71,517.58, 107,277.16 and 21,598.10 is: 32,397.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,517.58 : 107,277.16 = 21,598.10 : x
  2. Step 2: Convert to fraction form
    71,517.58/107,277.16 = 21,598.10/x
  3. Step 3: Cross multiply
    71,517.58x = 107,277.16 × 21,598.10
  4. Step 4: Simplify right side
    71,517.58x = 2,316,982,829.40
  5. Step 5: Solve for x
    x = 2,316,982,829.40/71,517.58
  6. Step 6: Final answer
    x = 32,397.39

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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.