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Finding the Fourth Proportional to 9,995.39, 13,793.64 and 5,519.15

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Solution

The fourth proportional to 9,995.39, 13,793.64 and 5,519.15 is: 7,616.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,995.39 : 13,793.64 = 5,519.15 : x
  2. Step 2: Convert to fraction form
    9,995.39/13,793.64 = 5,519.15/x
  3. Step 3: Cross multiply
    9,995.39x = 13,793.64 × 5,519.15
  4. Step 4: Simplify right side
    9,995.39x = 76,129,130.27
  5. Step 5: Solve for x
    x = 76,129,130.27/9,995.39
  6. Step 6: Final answer
    x = 7,616.43

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Half scale
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Double scale
Find fourth proportional to 9,996.39, 13,795.02 and 5,520.15
Similar ratio
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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.