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Finding the Fourth Proportional to 61,988.76, 92,979.81 and 36,357.36

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Solution

The fourth proportional to 61,988.76, 92,979.81 and 36,357.36 is: 54,534.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,988.76 : 92,979.81 = 36,357.36 : x
  2. Step 2: Convert to fraction form
    61,988.76/92,979.81 = 36,357.36/x
  3. Step 3: Cross multiply
    61,988.76x = 92,979.81 × 36,357.36
  4. Step 4: Simplify right side
    61,988.76x = 3,380,500,424.90
  5. Step 5: Solve for x
    x = 3,380,500,424.90/61,988.76
  6. Step 6: Final answer
    x = 54,534.09

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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.