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Finding the Fourth Proportional to 61,250.66, 91,876 and 16,877.86

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Solution

The fourth proportional to 61,250.66, 91,876 and 16,877.86 is: 25,316.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,250.66 : 91,876 = 16,877.86 : x
  2. Step 2: Convert to fraction form
    61,250.66/91,876 = 16,877.86/x
  3. Step 3: Cross multiply
    61,250.66x = 91,876 × 16,877.86
  4. Step 4: Simplify right side
    61,250.66x = 1,550,670,265.36
  5. Step 5: Solve for x
    x = 1,550,670,265.36/61,250.66
  6. Step 6: Final answer
    x = 25,316.79

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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.