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Finding the Fourth Proportional to 50,487.48, 69,672.78 and 29,279.07

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Solution

The fourth proportional to 50,487.48, 69,672.78 and 29,279.07 is: 40,405.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,487.48 : 69,672.78 = 29,279.07 : x
  2. Step 2: Convert to fraction form
    50,487.48/69,672.78 = 29,279.07/x
  3. Step 3: Cross multiply
    50,487.48x = 69,672.78 × 29,279.07
  4. Step 4: Simplify right side
    50,487.48x = 2,039,954,202.71
  5. Step 5: Solve for x
    x = 2,039,954,202.71/50,487.48
  6. Step 6: Final answer
    x = 40,405.15

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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.