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Finding the Fourth Proportional to 6,691.72, 10,038.12 and 2,074.72

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Solution

The fourth proportional to 6,691.72, 10,038.12 and 2,074.72 is: 3,112.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,691.72 : 10,038.12 = 2,074.72 : x
  2. Step 2: Convert to fraction form
    6,691.72/10,038.12 = 2,074.72/x
  3. Step 3: Cross multiply
    6,691.72x = 10,038.12 × 2,074.72
  4. Step 4: Simplify right side
    6,691.72x = 20,826,288.33
  5. Step 5: Solve for x
    x = 20,826,288.33/6,691.72
  6. Step 6: Final answer
    x = 3,112.25

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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.