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Finding the Fourth Proportional to 61,551.64, 92,329.40 and 19,432.12

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Solution

The fourth proportional to 61,551.64, 92,329.40 and 19,432.12 is: 29,148.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,551.64 : 92,329.40 = 19,432.12 : x
  2. Step 2: Convert to fraction form
    61,551.64/92,329.40 = 19,432.12/x
  3. Step 3: Cross multiply
    61,551.64x = 92,329.40 × 19,432.12
  4. Step 4: Simplify right side
    61,551.64x = 1,794,155,980.33
  5. Step 5: Solve for x
    x = 1,794,155,980.33/61,551.64
  6. Step 6: Final answer
    x = 29,148.79

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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.