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Finding the Fourth Proportional to 86,226.89, 129,372.39 and 38,827.71

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Solution

The fourth proportional to 86,226.89, 129,372.39 and 38,827.71 is: 58,256.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,226.89 : 129,372.39 = 38,827.71 : x
  2. Step 2: Convert to fraction form
    86,226.89/129,372.39 = 38,827.71/x
  3. Step 3: Cross multiply
    86,226.89x = 129,372.39 × 38,827.71
  4. Step 4: Simplify right side
    86,226.89x = 5,023,233,640.93
  5. Step 5: Solve for x
    x = 5,023,233,640.93/86,226.89
  6. Step 6: Final answer
    x = 58,256.00

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1.5x scale

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.