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Finding the Fourth Proportional to 61,967.62, 92,899.66 and 28,711.55

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Solution

The fourth proportional to 61,967.62, 92,899.66 and 28,711.55 is: 43,043.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,967.62 : 92,899.66 = 28,711.55 : x
  2. Step 2: Convert to fraction form
    61,967.62/92,899.66 = 28,711.55/x
  3. Step 3: Cross multiply
    61,967.62x = 92,899.66 × 28,711.55
  4. Step 4: Simplify right side
    61,967.62x = 2,667,293,316.74
  5. Step 5: Solve for x
    x = 2,667,293,316.74/61,967.62
  6. Step 6: Final answer
    x = 43,043.34

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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.