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Finding the Fourth Proportional to 42,238.89, 58,283.89 and 25,239.55

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Solution

The fourth proportional to 42,238.89, 58,283.89 and 25,239.55 is: 34,827.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,238.89 : 58,283.89 = 25,239.55 : x
  2. Step 2: Convert to fraction form
    42,238.89/58,283.89 = 25,239.55/x
  3. Step 3: Cross multiply
    42,238.89x = 58,283.89 × 25,239.55
  4. Step 4: Simplify right side
    42,238.89x = 1,471,059,155.85
  5. Step 5: Solve for x
    x = 1,471,059,155.85/42,238.89
  6. Step 6: Final answer
    x = 34,827.13

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1.5x scale

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.