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Finding the Fourth Proportional to 15,174.33, 20,950.65 and 9,799.17

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Solution

The fourth proportional to 15,174.33, 20,950.65 and 9,799.17 is: 13,529.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,174.33 : 20,950.65 = 9,799.17 : x
  2. Step 2: Convert to fraction form
    15,174.33/20,950.65 = 9,799.17/x
  3. Step 3: Cross multiply
    15,174.33x = 20,950.65 × 9,799.17
  4. Step 4: Simplify right side
    15,174.33x = 205,298,980.96
  5. Step 5: Solve for x
    x = 205,298,980.96/15,174.33
  6. Step 6: Final answer
    x = 13,529.36

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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.