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Finding the Fourth Proportional to 22,659.89, 33,989.85 and 8,616.68

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Solution

The fourth proportional to 22,659.89, 33,989.85 and 8,616.68 is: 12,925.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,659.89 : 33,989.85 = 8,616.68 : x
  2. Step 2: Convert to fraction form
    22,659.89/33,989.85 = 8,616.68/x
  3. Step 3: Cross multiply
    22,659.89x = 33,989.85 × 8,616.68
  4. Step 4: Simplify right side
    22,659.89x = 292,879,642.45
  5. Step 5: Solve for x
    x = 292,879,642.45/22,659.89
  6. Step 6: Final answer
    x = 12,925.02

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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.