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Finding the Fourth Proportional to 38,805.93, 57,869.27 and 38,451.21

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Solution

The fourth proportional to 38,805.93, 57,869.27 and 38,451.21 is: 57,340.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,805.93 : 57,869.27 = 38,451.21 : x
  2. Step 2: Convert to fraction form
    38,805.93/57,869.27 = 38,451.21/x
  3. Step 3: Cross multiply
    38,805.93x = 57,869.27 × 38,451.21
  4. Step 4: Simplify right side
    38,805.93x = 2,225,143,261.06
  5. Step 5: Solve for x
    x = 2,225,143,261.06/38,805.93
  6. Step 6: Final answer
    x = 57,340.29

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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.