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Finding the Fourth Proportional to 66,800.30, 100,191.13 and 16,877.30

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Solution

The fourth proportional to 66,800.30, 100,191.13 and 16,877.30 is: 25,313.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,800.30 : 100,191.13 = 16,877.30 : x
  2. Step 2: Convert to fraction form
    66,800.30/100,191.13 = 16,877.30/x
  3. Step 3: Cross multiply
    66,800.30x = 100,191.13 × 16,877.30
  4. Step 4: Simplify right side
    66,800.30x = 1,690,955,215.20
  5. Step 5: Solve for x
    x = 1,690,955,215.20/66,800.30
  6. Step 6: Final answer
    x = 25,313.59

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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.