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Finding the Fourth Proportional to 27,176.70, 40,765.05 and 15,512.70

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Solution

The fourth proportional to 27,176.70, 40,765.05 and 15,512.70 is: 23,269.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,176.70 : 40,765.05 = 15,512.70 : x
  2. Step 2: Convert to fraction form
    27,176.70/40,765.05 = 15,512.70/x
  3. Step 3: Cross multiply
    27,176.70x = 40,765.05 × 15,512.70
  4. Step 4: Simplify right side
    27,176.70x = 632,375,991.14
  5. Step 5: Solve for x
    x = 632,375,991.14/27,176.70
  6. Step 6: Final answer
    x = 23,269.05

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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.