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Finding the Fourth Proportional to 16,488.76, 24,723.89 and 7,122.93

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Solution

The fourth proportional to 16,488.76, 24,723.89 and 7,122.93 is: 10,680.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,488.76 : 24,723.89 = 7,122.93 : x
  2. Step 2: Convert to fraction form
    16,488.76/24,723.89 = 7,122.93/x
  3. Step 3: Cross multiply
    16,488.76x = 24,723.89 × 7,122.93
  4. Step 4: Simplify right side
    16,488.76x = 176,106,537.80
  5. Step 5: Solve for x
    x = 176,106,537.80/16,488.76
  6. Step 6: Final answer
    x = 10,680.40

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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.