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Finding the Fourth Proportional to 18,794.68, 25,934.04 and 10,411.72

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Solution

The fourth proportional to 18,794.68, 25,934.04 and 10,411.72 is: 14,366.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,794.68 : 25,934.04 = 10,411.72 : x
  2. Step 2: Convert to fraction form
    18,794.68/25,934.04 = 10,411.72/x
  3. Step 3: Cross multiply
    18,794.68x = 25,934.04 × 10,411.72
  4. Step 4: Simplify right side
    18,794.68x = 270,017,962.95
  5. Step 5: Solve for x
    x = 270,017,962.95/18,794.68
  6. Step 6: Final answer
    x = 14,366.72

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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.