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Finding the Fourth Proportional to 15,690.46, 23,514.92 and 7,355.56

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Solution

The fourth proportional to 15,690.46, 23,514.92 and 7,355.56 is: 11,023.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,690.46 : 23,514.92 = 7,355.56 : x
  2. Step 2: Convert to fraction form
    15,690.46/23,514.92 = 7,355.56/x
  3. Step 3: Cross multiply
    15,690.46x = 23,514.92 × 7,355.56
  4. Step 4: Simplify right side
    15,690.46x = 172,965,404.96
  5. Step 5: Solve for x
    x = 172,965,404.96/15,690.46
  6. Step 6: Final answer
    x = 11,023.60

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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.