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Finding the Fourth Proportional to 18,398.91, 25,392.78 and 10,441.47

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Solution

The fourth proportional to 18,398.91, 25,392.78 and 10,441.47 is: 14,410.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,398.91 : 25,392.78 = 10,441.47 : x
  2. Step 2: Convert to fraction form
    18,398.91/25,392.78 = 10,441.47/x
  3. Step 3: Cross multiply
    18,398.91x = 25,392.78 × 10,441.47
  4. Step 4: Simplify right side
    18,398.91x = 265,137,950.59
  5. Step 5: Solve for x
    x = 265,137,950.59/18,398.91
  6. Step 6: Final answer
    x = 14,410.52

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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.