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Finding the Fourth Proportional to 52,560.80, 78,862.80 and 19,296.80

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Solution

The fourth proportional to 52,560.80, 78,862.80 and 19,296.80 is: 28,953.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,560.80 : 78,862.80 = 19,296.80 : x
  2. Step 2: Convert to fraction form
    52,560.80/78,862.80 = 19,296.80/x
  3. Step 3: Cross multiply
    52,560.80x = 78,862.80 × 19,296.80
  4. Step 4: Simplify right side
    52,560.80x = 1,521,799,679.04
  5. Step 5: Solve for x
    x = 1,521,799,679.04/52,560.80
  6. Step 6: Final answer
    x = 28,953.13

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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.