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Finding the Fourth Proportional to 69,366.76, 95,715.30 and 39,553

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Solution

The fourth proportional to 69,366.76, 95,715.30 and 39,553 is: 54,576.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,366.76 : 95,715.30 = 39,553 : x
  2. Step 2: Convert to fraction form
    69,366.76/95,715.30 = 39,553/x
  3. Step 3: Cross multiply
    69,366.76x = 95,715.30 × 39,553
  4. Step 4: Simplify right side
    69,366.76x = 3,785,827,260.90
  5. Step 5: Solve for x
    x = 3,785,827,260.90/69,366.76
  6. Step 6: Final answer
    x = 54,576.97

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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.