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Finding the Fourth Proportional to 16,818.81, 25,228.20 and 7,932.08

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Solution

The fourth proportional to 16,818.81, 25,228.20 and 7,932.08 is: 11,898.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,818.81 : 25,228.20 = 7,932.08 : x
  2. Step 2: Convert to fraction form
    16,818.81/25,228.20 = 7,932.08/x
  3. Step 3: Cross multiply
    16,818.81x = 25,228.20 × 7,932.08
  4. Step 4: Simplify right side
    16,818.81x = 200,111,974.52
  5. Step 5: Solve for x
    x = 200,111,974.52/16,818.81
  6. Step 6: Final answer
    x = 11,898.11

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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.