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Finding the Fourth Proportional to 8,713.51, 13,062.92 and 3,779.43

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Solution

The fourth proportional to 8,713.51, 13,062.92 and 3,779.43 is: 5,665.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,713.51 : 13,062.92 = 3,779.43 : x
  2. Step 2: Convert to fraction form
    8,713.51/13,062.92 = 3,779.43/x
  3. Step 3: Cross multiply
    8,713.51x = 13,062.92 × 3,779.43
  4. Step 4: Simplify right side
    8,713.51x = 49,370,397.33
  5. Step 5: Solve for x
    x = 49,370,397.33/8,713.51
  6. Step 6: Final answer
    x = 5,665.96

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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.