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Finding the Fourth Proportional to 29,378.99, 40,542.84 and 15,950.13

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Solution

The fourth proportional to 29,378.99, 40,542.84 and 15,950.13 is: 22,011.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,378.99 : 40,542.84 = 15,950.13 : x
  2. Step 2: Convert to fraction form
    29,378.99/40,542.84 = 15,950.13/x
  3. Step 3: Cross multiply
    29,378.99x = 40,542.84 × 15,950.13
  4. Step 4: Simplify right side
    29,378.99x = 646,663,568.57
  5. Step 5: Solve for x
    x = 646,663,568.57/29,378.99
  6. Step 6: Final answer
    x = 22,011.09

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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.