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Finding the Fourth Proportional to 52,999.48, 73,138.80 and 28,800.28

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Solution

The fourth proportional to 52,999.48, 73,138.80 and 28,800.28 is: 39,744.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,999.48 : 73,138.80 = 28,800.28 : x
  2. Step 2: Convert to fraction form
    52,999.48/73,138.80 = 28,800.28/x
  3. Step 3: Cross multiply
    52,999.48x = 73,138.80 × 28,800.28
  4. Step 4: Simplify right side
    52,999.48x = 2,106,417,918.86
  5. Step 5: Solve for x
    x = 2,106,417,918.86/52,999.48
  6. Step 6: Final answer
    x = 39,744.12

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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.