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Finding the Fourth Proportional to 31,974.63, 44,124.63 and 18,364.89

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Solution

The fourth proportional to 31,974.63, 44,124.63 and 18,364.89 is: 25,343.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,974.63 : 44,124.63 = 18,364.89 : x
  2. Step 2: Convert to fraction form
    31,974.63/44,124.63 = 18,364.89/x
  3. Step 3: Cross multiply
    31,974.63x = 44,124.63 × 18,364.89
  4. Step 4: Simplify right side
    31,974.63x = 810,343,976.24
  5. Step 5: Solve for x
    x = 810,343,976.24/31,974.63
  6. Step 6: Final answer
    x = 25,343.34

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1.5x scale

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.