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Finding the Fourth Proportional to 61,240.68, 91,861.02 and 16,867.89

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Solution

The fourth proportional to 61,240.68, 91,861.02 and 16,867.89 is: 25,301.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,240.68 : 91,861.02 = 16,867.89 : x
  2. Step 2: Convert to fraction form
    61,240.68/91,861.02 = 16,867.89/x
  3. Step 3: Cross multiply
    61,240.68x = 91,861.02 × 16,867.89
  4. Step 4: Simplify right side
    61,240.68x = 1,549,501,580.65
  5. Step 5: Solve for x
    x = 1,549,501,580.65/61,240.68
  6. Step 6: Final answer
    x = 25,301.84

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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.