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Finding the Fourth Proportional to 43,251.78, 64,752.12 and 38,749.80

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Solution

The fourth proportional to 43,251.78, 64,752.12 and 38,749.80 is: 58,012.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,251.78 : 64,752.12 = 38,749.80 : x
  2. Step 2: Convert to fraction form
    43,251.78/64,752.12 = 38,749.80/x
  3. Step 3: Cross multiply
    43,251.78x = 64,752.12 × 38,749.80
  4. Step 4: Simplify right side
    43,251.78x = 2,509,131,699.58
  5. Step 5: Solve for x
    x = 2,509,131,699.58/43,251.78
  6. Step 6: Final answer
    x = 58,012.22

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1.5x scale

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.