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Finding the Fourth Proportional to 50,648.52, 75,972.80 and 13,712.52

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Solution

The fourth proportional to 50,648.52, 75,972.80 and 13,712.52 is: 20,568.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,648.52 : 75,972.80 = 13,712.52 : x
  2. Step 2: Convert to fraction form
    50,648.52/75,972.80 = 13,712.52/x
  3. Step 3: Cross multiply
    50,648.52x = 75,972.80 × 13,712.52
  4. Step 4: Simplify right side
    50,648.52x = 1,041,778,539.46
  5. Step 5: Solve for x
    x = 1,041,778,539.46/50,648.52
  6. Step 6: Final answer
    x = 20,568.79

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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.