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Finding the Fourth Proportional to 18,463.66, 25,479.93 and 10,080.34

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Solution

The fourth proportional to 18,463.66, 25,479.93 and 10,080.34 is: 13,910.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,463.66 : 25,479.93 = 10,080.34 : x
  2. Step 2: Convert to fraction form
    18,463.66/25,479.93 = 10,080.34/x
  3. Step 3: Cross multiply
    18,463.66x = 25,479.93 × 10,080.34
  4. Step 4: Simplify right side
    18,463.66x = 256,846,357.58
  5. Step 5: Solve for x
    x = 256,846,357.58/18,463.66
  6. Step 6: Final answer
    x = 13,910.91

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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.