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Finding the Fourth Proportional to 36,749.78, 55,124.79 and 9,047.78

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Solution

The fourth proportional to 36,749.78, 55,124.79 and 9,047.78 is: 13,571.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,749.78 : 55,124.79 = 9,047.78 : x
  2. Step 2: Convert to fraction form
    36,749.78/55,124.79 = 9,047.78/x
  3. Step 3: Cross multiply
    36,749.78x = 55,124.79 × 9,047.78
  4. Step 4: Simplify right side
    36,749.78x = 498,756,972.47
  5. Step 5: Solve for x
    x = 498,756,972.47/36,749.78
  6. Step 6: Final answer
    x = 13,571.70

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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.