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Finding the Fourth Proportional to 52,792.50, 72,853.65 and 28,919.27

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Solution

The fourth proportional to 52,792.50, 72,853.65 and 28,919.27 is: 39,908.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,792.50 : 72,853.65 = 28,919.27 : x
  2. Step 2: Convert to fraction form
    52,792.50/72,853.65 = 28,919.27/x
  3. Step 3: Cross multiply
    52,792.50x = 72,853.65 × 28,919.27
  4. Step 4: Simplify right side
    52,792.50x = 2,106,874,556.97
  5. Step 5: Solve for x
    x = 2,106,874,556.97/52,792.50
  6. Step 6: Final answer
    x = 39,908.60

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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.