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Finding the Fourth Proportional to 19,952.28, 29,919.20 and 5,907.28

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Solution

The fourth proportional to 19,952.28, 29,919.20 and 5,907.28 is: 8,858.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,952.28 : 29,919.20 = 5,907.28 : x
  2. Step 2: Convert to fraction form
    19,952.28/29,919.20 = 5,907.28/x
  3. Step 3: Cross multiply
    19,952.28x = 29,919.20 × 5,907.28
  4. Step 4: Simplify right side
    19,952.28x = 176,741,091.78
  5. Step 5: Solve for x
    x = 176,741,091.78/19,952.28
  6. Step 6: Final answer
    x = 8,858.19

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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.