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Finding the Fourth Proportional to 23,306.76, 34,965.21 and 8,515.66

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Solution

The fourth proportional to 23,306.76, 34,965.21 and 8,515.66 is: 12,775.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,306.76 : 34,965.21 = 8,515.66 : x
  2. Step 2: Convert to fraction form
    23,306.76/34,965.21 = 8,515.66/x
  3. Step 3: Cross multiply
    23,306.76x = 34,965.21 × 8,515.66
  4. Step 4: Simplify right side
    23,306.76x = 297,751,731.49
  5. Step 5: Solve for x
    x = 297,751,731.49/23,306.76
  6. Step 6: Final answer
    x = 12,775.34

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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.