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Finding the Fourth Proportional to 60,961.92, 91,430.40 and 16,591.68

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Solution

The fourth proportional to 60,961.92, 91,430.40 and 16,591.68 is: 24,884.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,961.92 : 91,430.40 = 16,591.68 : x
  2. Step 2: Convert to fraction form
    60,961.92/91,430.40 = 16,591.68/x
  3. Step 3: Cross multiply
    60,961.92x = 91,430.40 × 16,591.68
  4. Step 4: Simplify right side
    60,961.92x = 1,516,983,939.07
  5. Step 5: Solve for x
    x = 1,516,983,939.07/60,961.92
  6. Step 6: Final answer
    x = 24,884.12

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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.