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Finding the Fourth Proportional to 52,751.20, 79,107.60 and 26,447.20

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Solution

The fourth proportional to 52,751.20, 79,107.60 and 26,447.20 is: 39,661.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,751.20 : 79,107.60 = 26,447.20 : x
  2. Step 2: Convert to fraction form
    52,751.20/79,107.60 = 26,447.20/x
  3. Step 3: Cross multiply
    52,751.20x = 79,107.60 × 26,447.20
  4. Step 4: Simplify right side
    52,751.20x = 2,092,174,518.72
  5. Step 5: Solve for x
    x = 2,092,174,518.72/52,751.20
  6. Step 6: Final answer
    x = 39,661.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.