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Finding the Fourth Proportional to 16,810.65, 25,221.64 and 7,452.99

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Solution

The fourth proportional to 16,810.65, 25,221.64 and 7,452.99 is: 11,182.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,810.65 : 25,221.64 = 7,452.99 : x
  2. Step 2: Convert to fraction form
    16,810.65/25,221.64 = 7,452.99/x
  3. Step 3: Cross multiply
    16,810.65x = 25,221.64 × 7,452.99
  4. Step 4: Simplify right side
    16,810.65x = 187,976,630.70
  5. Step 5: Solve for x
    x = 187,976,630.70/16,810.65
  6. Step 6: Final answer
    x = 11,182.00

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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.