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Finding the Fourth Proportional to 16,655.79, 24,981.93 and 5,561.25

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Solution

The fourth proportional to 16,655.79, 24,981.93 and 5,561.25 is: 8,341.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,655.79 : 24,981.93 = 5,561.25 : x
  2. Step 2: Convert to fraction form
    16,655.79/24,981.93 = 5,561.25/x
  3. Step 3: Cross multiply
    16,655.79x = 24,981.93 × 5,561.25
  4. Step 4: Simplify right side
    16,655.79x = 138,930,758.21
  5. Step 5: Solve for x
    x = 138,930,758.21/16,655.79
  6. Step 6: Final answer
    x = 8,341.29

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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.