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Finding the Fourth Proportional to 52,830.48, 79,233 and 15,380.40

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Solution

The fourth proportional to 52,830.48, 79,233 and 15,380.40 is: 23,066.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,830.48 : 79,233 = 15,380.40 : x
  2. Step 2: Convert to fraction form
    52,830.48/79,233 = 15,380.40/x
  3. Step 3: Cross multiply
    52,830.48x = 79,233 × 15,380.40
  4. Step 4: Simplify right side
    52,830.48x = 1,218,635,233.20
  5. Step 5: Solve for x
    x = 1,218,635,233.20/52,830.48
  6. Step 6: Final answer
    x = 23,066.90

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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.