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Finding the Fourth Proportional to 16,620.80, 24,925.80 and 5,524.51

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Solution

The fourth proportional to 16,620.80, 24,925.80 and 5,524.51 is: 8,284.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,620.80 : 24,925.80 = 5,524.51 : x
  2. Step 2: Convert to fraction form
    16,620.80/24,925.80 = 5,524.51/x
  3. Step 3: Cross multiply
    16,620.80x = 24,925.80 × 5,524.51
  4. Step 4: Simplify right side
    16,620.80x = 137,702,831.36
  5. Step 5: Solve for x
    x = 137,702,831.36/16,620.80
  6. Step 6: Final answer
    x = 8,284.97

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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.