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Finding the Fourth Proportional to 69,306.18, 103,958.95 and 27,156.48

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Solution

The fourth proportional to 69,306.18, 103,958.95 and 27,156.48 is: 40,734.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,306.18 : 103,958.95 = 27,156.48 : x
  2. Step 2: Convert to fraction form
    69,306.18/103,958.95 = 27,156.48/x
  3. Step 3: Cross multiply
    69,306.18x = 103,958.95 × 27,156.48
  4. Step 4: Simplify right side
    69,306.18x = 2,823,159,146.50
  5. Step 5: Solve for x
    x = 2,823,159,146.50/69,306.18
  6. Step 6: Final answer
    x = 40,734.59

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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.