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Finding the Fourth Proportional to 71,059.32, 98,061.88 and 39,228.24

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Solution

The fourth proportional to 71,059.32, 98,061.88 and 39,228.24 is: 54,134.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,059.32 : 98,061.88 = 39,228.24 : x
  2. Step 2: Convert to fraction form
    71,059.32/98,061.88 = 39,228.24/x
  3. Step 3: Cross multiply
    71,059.32x = 98,061.88 × 39,228.24
  4. Step 4: Simplify right side
    71,059.32x = 3,846,794,963.49
  5. Step 5: Solve for x
    x = 3,846,794,963.49/71,059.32
  6. Step 6: Final answer
    x = 54,134.98

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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.