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Finding the Fourth Proportional to 50,970.80, 76,456.20 and 40,473.20

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Solution

The fourth proportional to 50,970.80, 76,456.20 and 40,473.20 is: 60,709.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,970.80 : 76,456.20 = 40,473.20 : x
  2. Step 2: Convert to fraction form
    50,970.80/76,456.20 = 40,473.20/x
  3. Step 3: Cross multiply
    50,970.80x = 76,456.20 × 40,473.20
  4. Step 4: Simplify right side
    50,970.80x = 3,094,427,073.84
  5. Step 5: Solve for x
    x = 3,094,427,073.84/50,970.80
  6. Step 6: Final answer
    x = 60,709.80

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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.