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Finding the Fourth Proportional to 61,253.15, 91,882.87 and 16,878.92

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Solution

The fourth proportional to 61,253.15, 91,882.87 and 16,878.92 is: 25,319.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,253.15 : 91,882.87 = 16,878.92 : x
  2. Step 2: Convert to fraction form
    61,253.15/91,882.87 = 16,878.92/x
  3. Step 3: Cross multiply
    61,253.15x = 91,882.87 × 16,878.92
  4. Step 4: Simplify right side
    61,253.15x = 1,550,883,799.61
  5. Step 5: Solve for x
    x = 1,550,883,799.61/61,253.15
  6. Step 6: Final answer
    x = 25,319.25

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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.