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Finding the Fourth Proportional to 50,505.92, 69,712.80 and 29,289.92

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Solution

The fourth proportional to 50,505.92, 69,712.80 and 29,289.92 is: 40,428.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,505.92 : 69,712.80 = 29,289.92 : x
  2. Step 2: Convert to fraction form
    50,505.92/69,712.80 = 29,289.92/x
  3. Step 3: Cross multiply
    50,505.92x = 69,712.80 × 29,289.92
  4. Step 4: Simplify right side
    50,505.92x = 2,041,882,334.98
  5. Step 5: Solve for x
    x = 2,041,882,334.98/50,505.92
  6. Step 6: Final answer
    x = 40,428.57

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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.