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Finding the Fourth Proportional to 18,794.88, 25,937.52 and 10,412.16

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Solution

The fourth proportional to 18,794.88, 25,937.52 and 10,412.16 is: 14,369.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,794.88 : 25,937.52 = 10,412.16 : x
  2. Step 2: Convert to fraction form
    18,794.88/25,937.52 = 10,412.16/x
  3. Step 3: Cross multiply
    18,794.88x = 25,937.52 × 10,412.16
  4. Step 4: Simplify right side
    18,794.88x = 270,065,608.24
  5. Step 5: Solve for x
    x = 270,065,608.24/18,794.88
  6. Step 6: Final answer
    x = 14,369.11

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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.