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Finding the Fourth Proportional to 39,213.40, 58,820.28 and 9,631.24

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Solution

The fourth proportional to 39,213.40, 58,820.28 and 9,631.24 is: 14,446.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,213.40 : 58,820.28 = 9,631.24 : x
  2. Step 2: Convert to fraction form
    39,213.40/58,820.28 = 9,631.24/x
  3. Step 3: Cross multiply
    39,213.40x = 58,820.28 × 9,631.24
  4. Step 4: Simplify right side
    39,213.40x = 566,512,233.55
  5. Step 5: Solve for x
    x = 566,512,233.55/39,213.40
  6. Step 6: Final answer
    x = 14,446.90

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1.5x scale

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.