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Finding the Fourth Proportional to 7,199.31, 10,798.99 and 2,005.19

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Solution

The fourth proportional to 7,199.31, 10,798.99 and 2,005.19 is: 3,007.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,199.31 : 10,798.99 = 2,005.19 : x
  2. Step 2: Convert to fraction form
    7,199.31/10,798.99 = 2,005.19/x
  3. Step 3: Cross multiply
    7,199.31x = 10,798.99 × 2,005.19
  4. Step 4: Simplify right side
    7,199.31x = 21,654,008.25
  5. Step 5: Solve for x
    x = 21,654,008.25/7,199.31
  6. Step 6: Final answer
    x = 3,007.79

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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.