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Finding the Fourth Proportional to 69,392.80, 95,701.52 and 55,960.16

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Solution

The fourth proportional to 69,392.80, 95,701.52 and 55,960.16 is: 77,176.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,392.80 : 95,701.52 = 55,960.16 : x
  2. Step 2: Convert to fraction form
    69,392.80/95,701.52 = 55,960.16/x
  3. Step 3: Cross multiply
    69,392.80x = 95,701.52 × 55,960.16
  4. Step 4: Simplify right side
    69,392.80x = 5,355,472,371.44
  5. Step 5: Solve for x
    x = 5,355,472,371.44/69,392.80
  6. Step 6: Final answer
    x = 77,176.20

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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.