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Finding the Fourth Proportional to 58,827.90, 88,252.78 and 19,387.78

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Solution

The fourth proportional to 58,827.90, 88,252.78 and 19,387.78 is: 29,085.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,827.90 : 88,252.78 = 19,387.78 : x
  2. Step 2: Convert to fraction form
    58,827.90/88,252.78 = 19,387.78/x
  3. Step 3: Cross multiply
    58,827.90x = 88,252.78 × 19,387.78
  4. Step 4: Simplify right side
    58,827.90x = 1,711,025,483.03
  5. Step 5: Solve for x
    x = 1,711,025,483.03/58,827.90
  6. Step 6: Final answer
    x = 29,085.27

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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.