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Finding the Fourth Proportional to 80,472.64, 111,048.96 and 44,664.16

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Solution

The fourth proportional to 80,472.64, 111,048.96 and 44,664.16 is: 61,634.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,472.64 : 111,048.96 = 44,664.16 : x
  2. Step 2: Convert to fraction form
    80,472.64/111,048.96 = 44,664.16/x
  3. Step 3: Cross multiply
    80,472.64x = 111,048.96 × 44,664.16
  4. Step 4: Simplify right side
    80,472.64x = 4,959,908,517.27
  5. Step 5: Solve for x
    x = 4,959,908,517.27/80,472.64
  6. Step 6: Final answer
    x = 61,634.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.