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Finding the Fourth Proportional to 11,695.52, 17,543.64 and 4,765.16

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Solution

The fourth proportional to 11,695.52, 17,543.64 and 4,765.16 is: 7,147.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,695.52 : 17,543.64 = 4,765.16 : x
  2. Step 2: Convert to fraction form
    11,695.52/17,543.64 = 4,765.16/x
  3. Step 3: Cross multiply
    11,695.52x = 17,543.64 × 4,765.16
  4. Step 4: Simplify right side
    11,695.52x = 83,598,251.58
  5. Step 5: Solve for x
    x = 83,598,251.58/11,695.52
  6. Step 6: Final answer
    x = 7,147.89

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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.