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Finding the Fourth Proportional to 52,754.39, 72,802.70 and 28,883.28

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Solution

The fourth proportional to 52,754.39, 72,802.70 and 28,883.28 is: 39,859.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,754.39 : 72,802.70 = 28,883.28 : x
  2. Step 2: Convert to fraction form
    52,754.39/72,802.70 = 28,883.28/x
  3. Step 3: Cross multiply
    52,754.39x = 72,802.70 × 28,883.28
  4. Step 4: Simplify right side
    52,754.39x = 2,102,780,768.86
  5. Step 5: Solve for x
    x = 2,102,780,768.86/52,754.39
  6. Step 6: Final answer
    x = 39,859.83

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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.