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Finding the Fourth Proportional to 58,917.79, 88,390.53 and 19,474.90

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Solution

The fourth proportional to 58,917.79, 88,390.53 and 19,474.90 is: 29,216.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,917.79 : 88,390.53 = 19,474.90 : x
  2. Step 2: Convert to fraction form
    58,917.79/88,390.53 = 19,474.90/x
  3. Step 3: Cross multiply
    58,917.79x = 88,390.53 × 19,474.90
  4. Step 4: Simplify right side
    58,917.79x = 1,721,397,008.92
  5. Step 5: Solve for x
    x = 1,721,397,008.92/58,917.79
  6. Step 6: Final answer
    x = 29,216.93

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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.