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Finding the Fourth Proportional to 14,981.49, 22,472.42 and 7,188.48

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Solution

The fourth proportional to 14,981.49, 22,472.42 and 7,188.48 is: 10,782.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,981.49 : 22,472.42 = 7,188.48 : x
  2. Step 2: Convert to fraction form
    14,981.49/22,472.42 = 7,188.48/x
  3. Step 3: Cross multiply
    14,981.49x = 22,472.42 × 7,188.48
  4. Step 4: Simplify right side
    14,981.49x = 161,542,505.78
  5. Step 5: Solve for x
    x = 161,542,505.78/14,981.49
  6. Step 6: Final answer
    x = 10,782.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.