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Finding the Fourth Proportional to 52,792.14, 72,853.14 and 28,918.80

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Solution

The fourth proportional to 52,792.14, 72,853.14 and 28,918.80 is: 39,907.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,792.14 : 72,853.14 = 28,918.80 : x
  2. Step 2: Convert to fraction form
    52,792.14/72,853.14 = 28,918.80/x
  3. Step 3: Cross multiply
    52,792.14x = 72,853.14 × 28,918.80
  4. Step 4: Simplify right side
    52,792.14x = 2,106,825,385.03
  5. Step 5: Solve for x
    x = 2,106,825,385.03/52,792.14
  6. Step 6: Final answer
    x = 39,907.94

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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.