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Finding the Fourth Proportional to 16,520.71, 22,799.94 and 9,448.49

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Solution

The fourth proportional to 16,520.71, 22,799.94 and 9,448.49 is: 13,039.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,520.71 : 22,799.94 = 9,448.49 : x
  2. Step 2: Convert to fraction form
    16,520.71/22,799.94 = 9,448.49/x
  3. Step 3: Cross multiply
    16,520.71x = 22,799.94 × 9,448.49
  4. Step 4: Simplify right side
    16,520.71x = 215,424,957.85
  5. Step 5: Solve for x
    x = 215,424,957.85/16,520.71
  6. Step 6: Final answer
    x = 13,039.70

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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.