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Finding the Fourth Proportional to 71,327.73, 98,534.80 and 56,968.71

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Solution

The fourth proportional to 71,327.73, 98,534.80 and 56,968.71 is: 78,698.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,327.73 : 98,534.80 = 56,968.71 : x
  2. Step 2: Convert to fraction form
    71,327.73/98,534.80 = 56,968.71/x
  3. Step 3: Cross multiply
    71,327.73x = 98,534.80 × 56,968.71
  4. Step 4: Simplify right side
    71,327.73x = 5,613,400,446.11
  5. Step 5: Solve for x
    x = 5,613,400,446.11/71,327.73
  6. Step 6: Final answer
    x = 78,698.71

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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.