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Finding the Fourth Proportional to 7,659.88, 11,487.42 and 5,076.52

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Solution

The fourth proportional to 7,659.88, 11,487.42 and 5,076.52 is: 7,613.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,659.88 : 11,487.42 = 5,076.52 : x
  2. Step 2: Convert to fraction form
    7,659.88/11,487.42 = 5,076.52/x
  3. Step 3: Cross multiply
    7,659.88x = 11,487.42 × 5,076.52
  4. Step 4: Simplify right side
    7,659.88x = 58,316,117.38
  5. Step 5: Solve for x
    x = 58,316,117.38/7,659.88
  6. Step 6: Final answer
    x = 7,613.19

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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.