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Finding the Fourth Proportional to 6,995.67, 9,654.18 and 3,809.13

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Solution

The fourth proportional to 6,995.67, 9,654.18 and 3,809.13 is: 5,256.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,995.67 : 9,654.18 = 3,809.13 : x
  2. Step 2: Convert to fraction form
    6,995.67/9,654.18 = 3,809.13/x
  3. Step 3: Cross multiply
    6,995.67x = 9,654.18 × 3,809.13
  4. Step 4: Simplify right side
    6,995.67x = 36,774,026.66
  5. Step 5: Solve for x
    x = 36,774,026.66/6,995.67
  6. Step 6: Final answer
    x = 5,256.68

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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.