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Finding the Fourth Proportional to 22,984.65, 31,745.52 and 18,401.40

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Solution

The fourth proportional to 22,984.65, 31,745.52 and 18,401.40 is: 25,415.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,984.65 : 31,745.52 = 18,401.40 : x
  2. Step 2: Convert to fraction form
    22,984.65/31,745.52 = 18,401.40/x
  3. Step 3: Cross multiply
    22,984.65x = 31,745.52 × 18,401.40
  4. Step 4: Simplify right side
    22,984.65x = 584,162,011.73
  5. Step 5: Solve for x
    x = 584,162,011.73/22,984.65
  6. Step 6: Final answer
    x = 25,415.31

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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.