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Finding the Fourth Proportional to 31,913.46, 44,040.56 and 18,485.46

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Solution

The fourth proportional to 31,913.46, 44,040.56 and 18,485.46 is: 25,509.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,913.46 : 44,040.56 = 18,485.46 : x
  2. Step 2: Convert to fraction form
    31,913.46/44,040.56 = 18,485.46/x
  3. Step 3: Cross multiply
    31,913.46x = 44,040.56 × 18,485.46
  4. Step 4: Simplify right side
    31,913.46x = 814,109,917.83
  5. Step 5: Solve for x
    x = 814,109,917.83/31,913.46
  6. Step 6: Final answer
    x = 25,509.92

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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.