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Finding the Fourth Proportional to 73,007.54, 100,750.55 and 39,473.54

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Solution

The fourth proportional to 73,007.54, 100,750.55 and 39,473.54 is: 54,473.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,007.54 : 100,750.55 = 39,473.54 : x
  2. Step 2: Convert to fraction form
    73,007.54/100,750.55 = 39,473.54/x
  3. Step 3: Cross multiply
    73,007.54x = 100,750.55 × 39,473.54
  4. Step 4: Simplify right side
    73,007.54x = 3,976,980,865.45
  5. Step 5: Solve for x
    x = 3,976,980,865.45/73,007.54
  6. Step 6: Final answer
    x = 54,473.56

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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.