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Finding the Fourth Proportional to 57,153.80, 78,868.50 and 32,002.76

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Solution

The fourth proportional to 57,153.80, 78,868.50 and 32,002.76 is: 44,161.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,153.80 : 78,868.50 = 32,002.76 : x
  2. Step 2: Convert to fraction form
    57,153.80/78,868.50 = 32,002.76/x
  3. Step 3: Cross multiply
    57,153.80x = 78,868.50 × 32,002.76
  4. Step 4: Simplify right side
    57,153.80x = 2,524,009,677.06
  5. Step 5: Solve for x
    x = 2,524,009,677.06/57,153.80
  6. Step 6: Final answer
    x = 44,161.71

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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.