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Finding the Fourth Proportional to 52,892.64, 79,330.40 and 15,443.90

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Solution

The fourth proportional to 52,892.64, 79,330.40 and 15,443.90 is: 23,163.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,892.64 : 79,330.40 = 15,443.90 : x
  2. Step 2: Convert to fraction form
    52,892.64/79,330.40 = 15,443.90/x
  3. Step 3: Cross multiply
    52,892.64x = 79,330.40 × 15,443.90
  4. Step 4: Simplify right side
    52,892.64x = 1,225,170,764.56
  5. Step 5: Solve for x
    x = 1,225,170,764.56/52,892.64
  6. Step 6: Final answer
    x = 23,163.35

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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.