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Finding the Fourth Proportional to 57,920.70, 86,859.45 and 22,853.10

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Solution

The fourth proportional to 57,920.70, 86,859.45 and 22,853.10 is: 34,271.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,920.70 : 86,859.45 = 22,853.10 : x
  2. Step 2: Convert to fraction form
    57,920.70/86,859.45 = 22,853.10/x
  3. Step 3: Cross multiply
    57,920.70x = 86,859.45 × 22,853.10
  4. Step 4: Simplify right side
    57,920.70x = 1,985,007,696.80
  5. Step 5: Solve for x
    x = 1,985,007,696.80/57,920.70
  6. Step 6: Final answer
    x = 34,271.13

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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.