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Finding the Fourth Proportional to 19,996.97, 29,971.16 and 15,050.71

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Solution

The fourth proportional to 19,996.97, 29,971.16 and 15,050.71 is: 22,557.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,996.97 : 29,971.16 = 15,050.71 : x
  2. Step 2: Convert to fraction form
    19,996.97/29,971.16 = 15,050.71/x
  3. Step 3: Cross multiply
    19,996.97x = 29,971.16 × 15,050.71
  4. Step 4: Simplify right side
    19,996.97x = 451,087,012.41
  5. Step 5: Solve for x
    x = 451,087,012.41/19,996.97
  6. Step 6: Final answer
    x = 22,557.77

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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.