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Finding the Fourth Proportional to 52,508.55, 78,692.21 and 28,780.52

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Solution

The fourth proportional to 52,508.55, 78,692.21 and 28,780.52 is: 43,132.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,508.55 : 78,692.21 = 28,780.52 : x
  2. Step 2: Convert to fraction form
    52,508.55/78,692.21 = 28,780.52/x
  3. Step 3: Cross multiply
    52,508.55x = 78,692.21 × 28,780.52
  4. Step 4: Simplify right side
    52,508.55x = 2,264,802,294.31
  5. Step 5: Solve for x
    x = 2,264,802,294.31/52,508.55
  6. Step 6: Final answer
    x = 43,132.06

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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.