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Finding the Fourth Proportional to 50,561.80, 75,854.91 and 18,972.12

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Solution

The fourth proportional to 50,561.80, 75,854.91 and 18,972.12 is: 28,462.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,561.80 : 75,854.91 = 18,972.12 : x
  2. Step 2: Convert to fraction form
    50,561.80/75,854.91 = 18,972.12/x
  3. Step 3: Cross multiply
    50,561.80x = 75,854.91 × 18,972.12
  4. Step 4: Simplify right side
    50,561.80x = 1,439,128,455.11
  5. Step 5: Solve for x
    x = 1,439,128,455.11/50,561.80
  6. Step 6: Final answer
    x = 28,462.76

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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.