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Finding the Fourth Proportional to 71,069.89, 106,592.01 and 18,476.14

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Solution

The fourth proportional to 71,069.89, 106,592.01 and 18,476.14 is: 27,710.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,069.89 : 106,592.01 = 18,476.14 : x
  2. Step 2: Convert to fraction form
    71,069.89/106,592.01 = 18,476.14/x
  3. Step 3: Cross multiply
    71,069.89x = 106,592.01 × 18,476.14
  4. Step 4: Simplify right side
    71,069.89x = 1,969,408,899.64
  5. Step 5: Solve for x
    x = 1,969,408,899.64/71,069.89
  6. Step 6: Final answer
    x = 27,710.88

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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.