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Finding the Fourth Proportional to 12,863.17, 19,260.95 and 10,351.00

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Solution

The fourth proportional to 12,863.17, 19,260.95 and 10,351.00 is: 15,499.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,863.17 : 19,260.95 = 10,351.00 : x
  2. Step 2: Convert to fraction form
    12,863.17/19,260.95 = 10,351.00/x
  3. Step 3: Cross multiply
    12,863.17x = 19,260.95 × 10,351.00
  4. Step 4: Simplify right side
    12,863.17x = 199,369,993.54
  5. Step 5: Solve for x
    x = 199,369,993.54/12,863.17
  6. Step 6: Final answer
    x = 15,499.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.