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Finding the Fourth Proportional to 71,680.88, 107,522.80 and 26,087.04

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Solution

The fourth proportional to 71,680.88, 107,522.80 and 26,087.04 is: 39,131.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,680.88 : 107,522.80 = 26,087.04 : x
  2. Step 2: Convert to fraction form
    71,680.88/107,522.80 = 26,087.04/x
  3. Step 3: Cross multiply
    71,680.88x = 107,522.80 × 26,087.04
  4. Step 4: Simplify right side
    71,680.88x = 2,804,951,584.51
  5. Step 5: Solve for x
    x = 2,804,951,584.51/71,680.88
  6. Step 6: Final answer
    x = 39,131.10

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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.