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Finding the Fourth Proportional to 71,182.64, 98,227.84 and 39,349.64

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Solution

The fourth proportional to 71,182.64, 98,227.84 and 39,349.64 is: 54,300.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,182.64 : 98,227.84 = 39,349.64 : x
  2. Step 2: Convert to fraction form
    71,182.64/98,227.84 = 39,349.64/x
  3. Step 3: Cross multiply
    71,182.64x = 98,227.84 × 39,349.64
  4. Step 4: Simplify right side
    71,182.64x = 3,865,230,141.98
  5. Step 5: Solve for x
    x = 3,865,230,141.98/71,182.64
  6. Step 6: Final answer
    x = 54,300.18

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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.