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Finding the Fourth Proportional to 28,757.82, 39,473.74 and 25,543.74

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Solution

The fourth proportional to 28,757.82, 39,473.74 and 25,543.74 is: 35,062.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,757.82 : 39,473.74 = 25,543.74 : x
  2. Step 2: Convert to fraction form
    28,757.82/39,473.74 = 25,543.74/x
  3. Step 3: Cross multiply
    28,757.82x = 39,473.74 × 25,543.74
  4. Step 4: Simplify right side
    28,757.82x = 1,008,306,951.39
  5. Step 5: Solve for x
    x = 1,008,306,951.39/28,757.82
  6. Step 6: Final answer
    x = 35,062.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.