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Finding the Fourth Proportional to 16,392.52, 22,621.62 and 9,318.94

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Solution

The fourth proportional to 16,392.52, 22,621.62 and 9,318.94 is: 12,860.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,392.52 : 22,621.62 = 9,318.94 : x
  2. Step 2: Convert to fraction form
    16,392.52/22,621.62 = 9,318.94/x
  3. Step 3: Cross multiply
    16,392.52x = 22,621.62 × 9,318.94
  4. Step 4: Simplify right side
    16,392.52x = 210,809,519.48
  5. Step 5: Solve for x
    x = 210,809,519.48/16,392.52
  6. Step 6: Final answer
    x = 12,860.10

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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.