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Finding the Fourth Proportional to 38,907.92, 57,991.74 and 36,693.38

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Solution

The fourth proportional to 38,907.92, 57,991.74 and 36,693.38 is: 54,691.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,907.92 : 57,991.74 = 36,693.38 : x
  2. Step 2: Convert to fraction form
    38,907.92/57,991.74 = 36,693.38/x
  3. Step 3: Cross multiply
    38,907.92x = 57,991.74 × 36,693.38
  4. Step 4: Simplify right side
    38,907.92x = 2,127,912,952.68
  5. Step 5: Solve for x
    x = 2,127,912,952.68/38,907.92
  6. Step 6: Final answer
    x = 54,691.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.