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Finding the Fourth Proportional to 16,963.16, 23,411.96 and 9,411.92

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Solution

The fourth proportional to 16,963.16, 23,411.96 and 9,411.92 is: 12,990.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,963.16 : 23,411.96 = 9,411.92 : x
  2. Step 2: Convert to fraction form
    16,963.16/23,411.96 = 9,411.92/x
  3. Step 3: Cross multiply
    16,963.16x = 23,411.96 × 9,411.92
  4. Step 4: Simplify right side
    16,963.16x = 220,351,330.44
  5. Step 5: Solve for x
    x = 220,351,330.44/16,963.16
  6. Step 6: Final answer
    x = 12,990.00

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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.