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Finding the Fourth Proportional to 19,489.29, 29,233.87 and 7,009.29

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Solution

The fourth proportional to 19,489.29, 29,233.87 and 7,009.29 is: 10,513.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,489.29 : 29,233.87 = 7,009.29 : x
  2. Step 2: Convert to fraction form
    19,489.29/29,233.87 = 7,009.29/x
  3. Step 3: Cross multiply
    19,489.29x = 29,233.87 × 7,009.29
  4. Step 4: Simplify right side
    19,489.29x = 204,908,726.86
  5. Step 5: Solve for x
    x = 204,908,726.86/19,489.29
  6. Step 6: Final answer
    x = 10,513.92

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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.