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Finding the Fourth Proportional to 53,897.80, 80,726.42 and 41,325.28

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Solution

The fourth proportional to 53,897.80, 80,726.42 and 41,325.28 is: 61,895.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,897.80 : 80,726.42 = 41,325.28 : x
  2. Step 2: Convert to fraction form
    53,897.80/80,726.42 = 41,325.28/x
  3. Step 3: Cross multiply
    53,897.80x = 80,726.42 × 41,325.28
  4. Step 4: Simplify right side
    53,897.80x = 3,336,041,909.90
  5. Step 5: Solve for x
    x = 3,336,041,909.90/53,897.80
  6. Step 6: Final answer
    x = 61,895.70

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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.