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Finding the Fourth Proportional to 52,593.60, 78,867.84 and 19,302.72

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Solution

The fourth proportional to 52,593.60, 78,867.84 and 19,302.72 is: 28,945.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,593.60 : 78,867.84 = 19,302.72 : x
  2. Step 2: Convert to fraction form
    52,593.60/78,867.84 = 19,302.72/x
  3. Step 3: Cross multiply
    52,593.60x = 78,867.84 × 19,302.72
  4. Step 4: Simplify right side
    52,593.60x = 1,522,363,832.52
  5. Step 5: Solve for x
    x = 1,522,363,832.52/52,593.60
  6. Step 6: Final answer
    x = 28,945.80

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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.