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Finding the Fourth Proportional to 69,257.80, 103,886.70 and 27,704.80

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Solution

The fourth proportional to 69,257.80, 103,886.70 and 27,704.80 is: 41,557.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,257.80 : 103,886.70 = 27,704.80 : x
  2. Step 2: Convert to fraction form
    69,257.80/103,886.70 = 27,704.80/x
  3. Step 3: Cross multiply
    69,257.80x = 103,886.70 × 27,704.80
  4. Step 4: Simplify right side
    69,257.80x = 2,878,160,246.16
  5. Step 5: Solve for x
    x = 2,878,160,246.16/69,257.80
  6. Step 6: Final answer
    x = 41,557.20

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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.