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Finding the Fourth Proportional to 58,883.28, 81,240.90 and 33,385.56

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Solution

The fourth proportional to 58,883.28, 81,240.90 and 33,385.56 is: 46,061.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,883.28 : 81,240.90 = 33,385.56 : x
  2. Step 2: Convert to fraction form
    58,883.28/81,240.90 = 33,385.56/x
  3. Step 3: Cross multiply
    58,883.28x = 81,240.90 × 33,385.56
  4. Step 4: Simplify right side
    58,883.28x = 2,712,272,941.40
  5. Step 5: Solve for x
    x = 2,712,272,941.40/58,883.28
  6. Step 6: Final answer
    x = 46,061.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.