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Finding the Fourth Proportional to 69,295.17, 103,859.72 and 27,148.95

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Solution

The fourth proportional to 69,295.17, 103,859.72 and 27,148.95 is: 40,690.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,295.17 : 103,859.72 = 27,148.95 : x
  2. Step 2: Convert to fraction form
    69,295.17/103,859.72 = 27,148.95/x
  3. Step 3: Cross multiply
    69,295.17x = 103,859.72 × 27,148.95
  4. Step 4: Simplify right side
    69,295.17x = 2,819,682,019.25
  5. Step 5: Solve for x
    x = 2,819,682,019.25/69,295.17
  6. Step 6: Final answer
    x = 40,690.89

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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.