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Finding the Fourth Proportional to 15,859.29, 23,789.16 and 7,540.16

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Solution

The fourth proportional to 15,859.29, 23,789.16 and 7,540.16 is: 11,310.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,859.29 : 23,789.16 = 7,540.16 : x
  2. Step 2: Convert to fraction form
    15,859.29/23,789.16 = 7,540.16/x
  3. Step 3: Cross multiply
    15,859.29x = 23,789.16 × 7,540.16
  4. Step 4: Simplify right side
    15,859.29x = 179,374,072.67
  5. Step 5: Solve for x
    x = 179,374,072.67/15,859.29
  6. Step 6: Final answer
    x = 11,310.35

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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.