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Finding the Fourth Proportional to 44,695.20, 66,913.20 and 43,399.20

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Solution

The fourth proportional to 44,695.20, 66,913.20 and 43,399.20 is: 64,972.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,695.20 : 66,913.20 = 43,399.20 : x
  2. Step 2: Convert to fraction form
    44,695.20/66,913.20 = 43,399.20/x
  3. Step 3: Cross multiply
    44,695.20x = 66,913.20 × 43,399.20
  4. Step 4: Simplify right side
    44,695.20x = 2,903,979,349.44
  5. Step 5: Solve for x
    x = 2,903,979,349.44/44,695.20
  6. Step 6: Final answer
    x = 64,972.96

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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.