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Finding the Fourth Proportional to 6,636.24, 9,159.48 and 5,514.12

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Solution

The fourth proportional to 6,636.24, 9,159.48 and 5,514.12 is: 7,610.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,636.24 : 9,159.48 = 5,514.12 : x
  2. Step 2: Convert to fraction form
    6,636.24/9,159.48 = 5,514.12/x
  3. Step 3: Cross multiply
    6,636.24x = 9,159.48 × 5,514.12
  4. Step 4: Simplify right side
    6,636.24x = 50,506,471.86
  5. Step 5: Solve for x
    x = 50,506,471.86/6,636.24
  6. Step 6: Final answer
    x = 7,610.71

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Double scale
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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.