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Finding the Fourth Proportional to 57,920.55, 86,881.70 and 22,859.88

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Solution

The fourth proportional to 57,920.55, 86,881.70 and 22,859.88 is: 34,290.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,920.55 : 86,881.70 = 22,859.88 : x
  2. Step 2: Convert to fraction form
    57,920.55/86,881.70 = 22,859.88/x
  3. Step 3: Cross multiply
    57,920.55x = 86,881.70 × 22,859.88
  4. Step 4: Simplify right side
    57,920.55x = 1,986,105,236.20
  5. Step 5: Solve for x
    x = 1,986,105,236.20/57,920.55
  6. Step 6: Final answer
    x = 34,290.17

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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.