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Finding the Fourth Proportional to 18,479.64, 25,501.86 and 10,096.20

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Solution

The fourth proportional to 18,479.64, 25,501.86 and 10,096.20 is: 13,932.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,479.64 : 25,501.86 = 10,096.20 : x
  2. Step 2: Convert to fraction form
    18,479.64/25,501.86 = 10,096.20/x
  3. Step 3: Cross multiply
    18,479.64x = 25,501.86 × 10,096.20
  4. Step 4: Simplify right side
    18,479.64x = 257,471,878.93
  5. Step 5: Solve for x
    x = 257,471,878.93/18,479.64
  6. Step 6: Final answer
    x = 13,932.73

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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.