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Finding the Fourth Proportional to 15,024.16, 20,734.89 and 8,650.99

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Solution

The fourth proportional to 15,024.16, 20,734.89 and 8,650.99 is: 11,939.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,024.16 : 20,734.89 = 8,650.99 : x
  2. Step 2: Convert to fraction form
    15,024.16/20,734.89 = 8,650.99/x
  3. Step 3: Cross multiply
    15,024.16x = 20,734.89 × 8,650.99
  4. Step 4: Simplify right side
    15,024.16x = 179,377,326.04
  5. Step 5: Solve for x
    x = 179,377,326.04/15,024.16
  6. Step 6: Final answer
    x = 11,939.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.