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Finding the Fourth Proportional to 31,737.54, 43,796.11 and 18,307.99

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Solution

The fourth proportional to 31,737.54, 43,796.11 and 18,307.99 is: 25,264.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,737.54 : 43,796.11 = 18,307.99 : x
  2. Step 2: Convert to fraction form
    31,737.54/43,796.11 = 18,307.99/x
  3. Step 3: Cross multiply
    31,737.54x = 43,796.11 × 18,307.99
  4. Step 4: Simplify right side
    31,737.54x = 801,818,743.92
  5. Step 5: Solve for x
    x = 801,818,743.92/31,737.54
  6. Step 6: Final answer
    x = 25,264.05

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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.