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Finding the Fourth Proportional to 60,641.66, 90,972.20 and 25,586.48

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Solution

The fourth proportional to 60,641.66, 90,972.20 and 25,586.48 is: 38,383.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,641.66 : 90,972.20 = 25,586.48 : x
  2. Step 2: Convert to fraction form
    60,641.66/90,972.20 = 25,586.48/x
  3. Step 3: Cross multiply
    60,641.66x = 90,972.20 × 25,586.48
  4. Step 4: Simplify right side
    60,641.66x = 2,327,657,984.96
  5. Step 5: Solve for x
    x = 2,327,657,984.96/60,641.66
  6. Step 6: Final answer
    x = 38,383.81

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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.