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Finding the Fourth Proportional to 11,598.60, 17,397.90 and 6,665.70

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Solution

The fourth proportional to 11,598.60, 17,397.90 and 6,665.70 is: 9,998.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,598.60 : 17,397.90 = 6,665.70 : x
  2. Step 2: Convert to fraction form
    11,598.60/17,397.90 = 6,665.70/x
  3. Step 3: Cross multiply
    11,598.60x = 17,397.90 × 6,665.70
  4. Step 4: Simplify right side
    11,598.60x = 115,969,182.03
  5. Step 5: Solve for x
    x = 115,969,182.03/11,598.60
  6. Step 6: Final answer
    x = 9,998.55

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Double scale
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Similar ratio
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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.