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Finding the Fourth Proportional to 43,279.86, 64,923.51 and 15,197.51

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Solution

The fourth proportional to 43,279.86, 64,923.51 and 15,197.51 is: 22,797.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,279.86 : 64,923.51 = 15,197.51 : x
  2. Step 2: Convert to fraction form
    43,279.86/64,923.51 = 15,197.51/x
  3. Step 3: Cross multiply
    43,279.86x = 64,923.51 × 15,197.51
  4. Step 4: Simplify right side
    43,279.86x = 986,675,424.83
  5. Step 5: Solve for x
    x = 986,675,424.83/43,279.86
  6. Step 6: Final answer
    x = 22,797.56

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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.