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Finding the Fourth Proportional to 19,049.63, 26,282.41 and 12,340.40

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Solution

The fourth proportional to 19,049.63, 26,282.41 and 12,340.40 is: 17,025.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,049.63 : 26,282.41 = 12,340.40 : x
  2. Step 2: Convert to fraction form
    19,049.63/26,282.41 = 12,340.40/x
  3. Step 3: Cross multiply
    19,049.63x = 26,282.41 × 12,340.40
  4. Step 4: Simplify right side
    19,049.63x = 324,335,290.10
  5. Step 5: Solve for x
    x = 324,335,290.10/19,049.63
  6. Step 6: Final answer
    x = 17,025.81

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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.