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Finding the Fourth Proportional to 15,143.63, 22,705.73 and 9,943.43

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Solution

The fourth proportional to 15,143.63, 22,705.73 and 9,943.43 is: 14,908.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,143.63 : 22,705.73 = 9,943.43 : x
  2. Step 2: Convert to fraction form
    15,143.63/22,705.73 = 9,943.43/x
  3. Step 3: Cross multiply
    15,143.63x = 22,705.73 × 9,943.43
  4. Step 4: Simplify right side
    15,143.63x = 225,772,787.14
  5. Step 5: Solve for x
    x = 225,772,787.14/15,143.63
  6. Step 6: Final answer
    x = 14,908.76

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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.