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Finding the Fourth Proportional to 16,617.90, 24,921.78 and 5,521.68

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Solution

The fourth proportional to 16,617.90, 24,921.78 and 5,521.68 is: 8,280.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,617.90 : 24,921.78 = 5,521.68 : x
  2. Step 2: Convert to fraction form
    16,617.90/24,921.78 = 5,521.68/x
  3. Step 3: Cross multiply
    16,617.90x = 24,921.78 × 5,521.68
  4. Step 4: Simplify right side
    16,617.90x = 137,610,094.19
  5. Step 5: Solve for x
    x = 137,610,094.19/16,617.90
  6. Step 6: Final answer
    x = 8,280.84

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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.