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Finding the Fourth Proportional to 16,465.44, 22,721.88 and 9,391.44

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Solution

The fourth proportional to 16,465.44, 22,721.88 and 9,391.44 is: 12,959.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,465.44 : 22,721.88 = 9,391.44 : x
  2. Step 2: Convert to fraction form
    16,465.44/22,721.88 = 9,391.44/x
  3. Step 3: Cross multiply
    16,465.44x = 22,721.88 × 9,391.44
  4. Step 4: Simplify right side
    16,465.44x = 213,391,172.71
  5. Step 5: Solve for x
    x = 213,391,172.71/16,465.44
  6. Step 6: Final answer
    x = 12,959.94

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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.