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Finding the Fourth Proportional to 60,691.91, 91,043.28 and 16,317.68

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Solution

The fourth proportional to 60,691.91, 91,043.28 and 16,317.68 is: 24,477.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,691.91 : 91,043.28 = 16,317.68 : x
  2. Step 2: Convert to fraction form
    60,691.91/91,043.28 = 16,317.68/x
  3. Step 3: Cross multiply
    60,691.91x = 91,043.28 × 16,317.68
  4. Step 4: Simplify right side
    60,691.91x = 1,485,614,653.97
  5. Step 5: Solve for x
    x = 1,485,614,653.97/60,691.91
  6. Step 6: Final answer
    x = 24,477.97

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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.