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Finding the Fourth Proportional to 76,504.68, 114,544.17 and 38,983.86

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Solution

The fourth proportional to 76,504.68, 114,544.17 and 38,983.86 is: 58,367.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,504.68 : 114,544.17 = 38,983.86 : x
  2. Step 2: Convert to fraction form
    76,504.68/114,544.17 = 38,983.86/x
  3. Step 3: Cross multiply
    76,504.68x = 114,544.17 × 38,983.86
  4. Step 4: Simplify right side
    76,504.68x = 4,465,373,887.10
  5. Step 5: Solve for x
    x = 4,465,373,887.10/76,504.68
  6. Step 6: Final answer
    x = 58,367.33

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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.