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Finding the Fourth Proportional to 56,772.60, 85,158.90 and 14,652.60

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Solution

The fourth proportional to 56,772.60, 85,158.90 and 14,652.60 is: 21,978.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,772.60 : 85,158.90 = 14,652.60 : x
  2. Step 2: Convert to fraction form
    56,772.60/85,158.90 = 14,652.60/x
  3. Step 3: Cross multiply
    56,772.60x = 85,158.90 × 14,652.60
  4. Step 4: Simplify right side
    56,772.60x = 1,247,799,298.14
  5. Step 5: Solve for x
    x = 1,247,799,298.14/56,772.60
  6. Step 6: Final answer
    x = 21,978.90

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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.