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Finding the Fourth Proportional to 8,613.51, 11,883 and 5,255.04

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Solution

The fourth proportional to 8,613.51, 11,883 and 5,255.04 is: 7,249.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,613.51 : 11,883 = 5,255.04 : x
  2. Step 2: Convert to fraction form
    8,613.51/11,883 = 5,255.04/x
  3. Step 3: Cross multiply
    8,613.51x = 11,883 × 5,255.04
  4. Step 4: Simplify right side
    8,613.51x = 62,445,640.32
  5. Step 5: Solve for x
    x = 62,445,640.32/8,613.51
  6. Step 6: Final answer
    x = 7,249.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.