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Finding the Fourth Proportional to 49,997.25, 74,995.88 and 13,061.25

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Solution

The fourth proportional to 49,997.25, 74,995.88 and 13,061.25 is: 19,591.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,997.25 : 74,995.88 = 13,061.25 : x
  2. Step 2: Convert to fraction form
    49,997.25/74,995.88 = 13,061.25/x
  3. Step 3: Cross multiply
    49,997.25x = 74,995.88 × 13,061.25
  4. Step 4: Simplify right side
    49,997.25x = 979,539,872.34
  5. Step 5: Solve for x
    x = 979,539,872.34/49,997.25
  6. Step 6: Final answer
    x = 19,591.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.