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Finding the Fourth Proportional to 43,642.20, 65,472.60 and 24,931.20

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Solution

The fourth proportional to 43,642.20, 65,472.60 and 24,931.20 is: 37,402.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,642.20 : 65,472.60 = 24,931.20 : x
  2. Step 2: Convert to fraction form
    43,642.20/65,472.60 = 24,931.20/x
  3. Step 3: Cross multiply
    43,642.20x = 65,472.60 × 24,931.20
  4. Step 4: Simplify right side
    43,642.20x = 1,632,310,485.12
  5. Step 5: Solve for x
    x = 1,632,310,485.12/43,642.20
  6. Step 6: Final answer
    x = 37,402.11

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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.