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Finding the Fourth Proportional to 29,158.92, 40,192.74 and 19,711.08

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Solution

The fourth proportional to 29,158.92, 40,192.74 and 19,711.08 is: 27,169.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,158.92 : 40,192.74 = 19,711.08 : x
  2. Step 2: Convert to fraction form
    29,158.92/40,192.74 = 19,711.08/x
  3. Step 3: Cross multiply
    29,158.92x = 40,192.74 × 19,711.08
  4. Step 4: Simplify right side
    29,158.92x = 792,242,313.56
  5. Step 5: Solve for x
    x = 792,242,313.56/29,158.92
  6. Step 6: Final answer
    x = 27,169.81

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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.