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Finding the Fourth Proportional to 22,674.30, 31,289.90 and 12,602.48

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Solution

The fourth proportional to 22,674.30, 31,289.90 and 12,602.48 is: 17,391.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,674.30 : 31,289.90 = 12,602.48 : x
  2. Step 2: Convert to fraction form
    22,674.30/31,289.90 = 12,602.48/x
  3. Step 3: Cross multiply
    22,674.30x = 31,289.90 × 12,602.48
  4. Step 4: Simplify right side
    22,674.30x = 394,330,338.95
  5. Step 5: Solve for x
    x = 394,330,338.95/22,674.30
  6. Step 6: Final answer
    x = 17,391.07

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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.