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Finding the Fourth Proportional to 28,847, 39,813.18 and 17,675.48

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Solution

The fourth proportional to 28,847, 39,813.18 and 17,675.48 is: 24,394.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,847 : 39,813.18 = 17,675.48 : x
  2. Step 2: Convert to fraction form
    28,847/39,813.18 = 17,675.48/x
  3. Step 3: Cross multiply
    28,847x = 39,813.18 × 17,675.48
  4. Step 4: Simplify right side
    28,847x = 703,717,066.83
  5. Step 5: Solve for x
    x = 703,717,066.83/28,847
  6. Step 6: Final answer
    x = 24,394.81

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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.