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Finding the Fourth Proportional to 70,560.71, 97,374.93 and 38,732.57

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Solution

The fourth proportional to 70,560.71, 97,374.93 and 38,732.57 is: 53,451.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,560.71 : 97,374.93 = 38,732.57 : x
  2. Step 2: Convert to fraction form
    70,560.71/97,374.93 = 38,732.57/x
  3. Step 3: Cross multiply
    70,560.71x = 97,374.93 × 38,732.57
  4. Step 4: Simplify right side
    70,560.71x = 3,771,581,292.47
  5. Step 5: Solve for x
    x = 3,771,581,292.47/70,560.71
  6. Step 6: Final answer
    x = 53,451.58

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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.