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Finding the Fourth Proportional to 69,017.97, 103,511.57 and 26,899.19

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Solution

The fourth proportional to 69,017.97, 103,511.57 and 26,899.19 is: 40,342.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,017.97 : 103,511.57 = 26,899.19 : x
  2. Step 2: Convert to fraction form
    69,017.97/103,511.57 = 26,899.19/x
  3. Step 3: Cross multiply
    69,017.97x = 103,511.57 × 26,899.19
  4. Step 4: Simplify right side
    69,017.97x = 2,784,377,276.05
  5. Step 5: Solve for x
    x = 2,784,377,276.05/69,017.97
  6. Step 6: Final answer
    x = 40,342.78

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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.