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Finding the Fourth Proportional to 39,009, 53,842.02 and 22,251.72

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Solution

The fourth proportional to 39,009, 53,842.02 and 22,251.72 is: 30,712.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,009 : 53,842.02 = 22,251.72 : x
  2. Step 2: Convert to fraction form
    39,009/53,842.02 = 22,251.72/x
  3. Step 3: Cross multiply
    39,009x = 53,842.02 × 22,251.72
  4. Step 4: Simplify right side
    39,009x = 1,198,077,553.27
  5. Step 5: Solve for x
    x = 1,198,077,553.27/39,009
  6. Step 6: Final answer
    x = 30,712.85

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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.