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Finding the Fourth Proportional to 61,298.13, 91,947.03 and 16,319.49

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Solution

The fourth proportional to 61,298.13, 91,947.03 and 16,319.49 is: 24,479.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,298.13 : 91,947.03 = 16,319.49 : x
  2. Step 2: Convert to fraction form
    61,298.13/91,947.03 = 16,319.49/x
  3. Step 3: Cross multiply
    61,298.13x = 91,947.03 × 16,319.49
  4. Step 4: Simplify right side
    61,298.13x = 1,500,528,230.62
  5. Step 5: Solve for x
    x = 1,500,528,230.62/61,298.13
  6. Step 6: Final answer
    x = 24,479.18

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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.