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Finding the Fourth Proportional to 61,787.61, 92,532.78 and 58,686.93

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Solution

The fourth proportional to 61,787.61, 92,532.78 and 58,686.93 is: 87,889.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,787.61 : 92,532.78 = 58,686.93 : x
  2. Step 2: Convert to fraction form
    61,787.61/92,532.78 = 58,686.93/x
  3. Step 3: Cross multiply
    61,787.61x = 92,532.78 × 58,686.93
  4. Step 4: Simplify right side
    61,787.61x = 5,430,464,782.57
  5. Step 5: Solve for x
    x = 5,430,464,782.57/61,787.61
  6. Step 6: Final answer
    x = 87,889.22

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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.