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Finding the Fourth Proportional to 57,277.80, 85,843.80 and 51,008.40

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Solution

The fourth proportional to 57,277.80, 85,843.80 and 51,008.40 is: 76,447.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,277.80 : 85,843.80 = 51,008.40 : x
  2. Step 2: Convert to fraction form
    57,277.80/85,843.80 = 51,008.40/x
  3. Step 3: Cross multiply
    57,277.80x = 85,843.80 × 51,008.40
  4. Step 4: Simplify right side
    57,277.80x = 4,378,754,887.92
  5. Step 5: Solve for x
    x = 4,378,754,887.92/57,277.80
  6. Step 6: Final answer
    x = 76,447.68

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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.