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Finding the Fourth Proportional to 7,613.12, 11,403 and 4,682.52

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Solution

The fourth proportional to 7,613.12, 11,403 and 4,682.52 is: 7,013.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,613.12 : 11,403 = 4,682.52 : x
  2. Step 2: Convert to fraction form
    7,613.12/11,403 = 4,682.52/x
  3. Step 3: Cross multiply
    7,613.12x = 11,403 × 4,682.52
  4. Step 4: Simplify right side
    7,613.12x = 53,394,775.56
  5. Step 5: Solve for x
    x = 53,394,775.56/7,613.12
  6. Step 6: Final answer
    x = 7,013.52

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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.