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Finding the Fourth Proportional to 66,167.25, 99,250.88 and 16,919.25

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Solution

The fourth proportional to 66,167.25, 99,250.88 and 16,919.25 is: 25,378.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,167.25 : 99,250.88 = 16,919.25 : x
  2. Step 2: Convert to fraction form
    66,167.25/99,250.88 = 16,919.25/x
  3. Step 3: Cross multiply
    66,167.25x = 99,250.88 × 16,919.25
  4. Step 4: Simplify right side
    66,167.25x = 1,679,250,366.84
  5. Step 5: Solve for x
    x = 1,679,250,366.84/66,167.25
  6. Step 6: Final answer
    x = 25,378.88

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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.