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Finding the Fourth Proportional to 16,463.25, 22,719.29 and 9,389.68

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Solution

The fourth proportional to 16,463.25, 22,719.29 and 9,389.68 is: 12,957.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,463.25 : 22,719.29 = 9,389.68 : x
  2. Step 2: Convert to fraction form
    16,463.25/22,719.29 = 9,389.68/x
  3. Step 3: Cross multiply
    16,463.25x = 22,719.29 × 9,389.68
  4. Step 4: Simplify right side
    16,463.25x = 213,326,759.18
  5. Step 5: Solve for x
    x = 213,326,759.18/16,463.25
  6. Step 6: Final answer
    x = 12,957.75

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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.