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Finding the Fourth Proportional to 18,143.88, 25,041.20 and 10,592.46

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Solution

The fourth proportional to 18,143.88, 25,041.20 and 10,592.46 is: 14,619.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,143.88 : 25,041.20 = 10,592.46 : x
  2. Step 2: Convert to fraction form
    18,143.88/25,041.20 = 10,592.46/x
  3. Step 3: Cross multiply
    18,143.88x = 25,041.20 × 10,592.46
  4. Step 4: Simplify right side
    18,143.88x = 265,247,856.39
  5. Step 5: Solve for x
    x = 265,247,856.39/18,143.88
  6. Step 6: Final answer
    x = 14,619.14

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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.