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Finding the Fourth Proportional to 18,472.32, 27,701.10 and 6,779.16

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Solution

The fourth proportional to 18,472.32, 27,701.10 and 6,779.16 is: 10,166.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,472.32 : 27,701.10 = 6,779.16 : x
  2. Step 2: Convert to fraction form
    18,472.32/27,701.10 = 6,779.16/x
  3. Step 3: Cross multiply
    18,472.32x = 27,701.10 × 6,779.16
  4. Step 4: Simplify right side
    18,472.32x = 187,790,189.08
  5. Step 5: Solve for x
    x = 187,790,189.08/18,472.32
  6. Step 6: Final answer
    x = 10,166.03

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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.