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Finding the Fourth Proportional to 16,872.55, 25,309.06 and 5,779.00

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Solution

The fourth proportional to 16,872.55, 25,309.06 and 5,779.00 is: 8,668.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,872.55 : 25,309.06 = 5,779.00 : x
  2. Step 2: Convert to fraction form
    16,872.55/25,309.06 = 5,779.00/x
  3. Step 3: Cross multiply
    16,872.55x = 25,309.06 × 5,779.00
  4. Step 4: Simplify right side
    16,872.55x = 146,260,932.57
  5. Step 5: Solve for x
    x = 146,260,932.57/16,872.55
  6. Step 6: Final answer
    x = 8,668.57

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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.