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Finding the Fourth Proportional to 58,579.53, 87,851.13 and 21,134.74

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Solution

The fourth proportional to 58,579.53, 87,851.13 and 21,134.74 is: 31,695.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,579.53 : 87,851.13 = 21,134.74 : x
  2. Step 2: Convert to fraction form
    58,579.53/87,851.13 = 21,134.74/x
  3. Step 3: Cross multiply
    58,579.53x = 87,851.13 × 21,134.74
  4. Step 4: Simplify right side
    58,579.53x = 1,856,710,791.26
  5. Step 5: Solve for x
    x = 1,856,710,791.26/58,579.53
  6. Step 6: Final answer
    x = 31,695.56

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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.