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Finding the Fourth Proportional to 73,007.70, 109,515.15 and 38,015.70

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Solution

The fourth proportional to 73,007.70, 109,515.15 and 38,015.70 is: 57,025.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,007.70 : 109,515.15 = 38,015.70 : x
  2. Step 2: Convert to fraction form
    73,007.70/109,515.15 = 38,015.70/x
  3. Step 3: Cross multiply
    73,007.70x = 109,515.15 × 38,015.70
  4. Step 4: Simplify right side
    73,007.70x = 4,163,295,087.86
  5. Step 5: Solve for x
    x = 4,163,295,087.86/73,007.70
  6. Step 6: Final answer
    x = 57,025.42

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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.