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Finding the Fourth Proportional to 52,871.14, 72,962.22 and 28,998.28

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Solution

The fourth proportional to 52,871.14, 72,962.22 and 28,998.28 is: 40,017.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,871.14 : 72,962.22 = 28,998.28 : x
  2. Step 2: Convert to fraction form
    52,871.14/72,962.22 = 28,998.28/x
  3. Step 3: Cross multiply
    52,871.14x = 72,962.22 × 28,998.28
  4. Step 4: Simplify right side
    52,871.14x = 2,115,778,884.98
  5. Step 5: Solve for x
    x = 2,115,778,884.98/52,871.14
  6. Step 6: Final answer
    x = 40,017.65

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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.