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Finding the Fourth Proportional to 18,293.40, 25,244.68 and 10,738.40

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Solution

The fourth proportional to 18,293.40, 25,244.68 and 10,738.40 is: 14,818.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,293.40 : 25,244.68 = 10,738.40 : x
  2. Step 2: Convert to fraction form
    18,293.40/25,244.68 = 10,738.40/x
  3. Step 3: Cross multiply
    18,293.40x = 25,244.68 × 10,738.40
  4. Step 4: Simplify right side
    18,293.40x = 271,087,471.71
  5. Step 5: Solve for x
    x = 271,087,471.71/18,293.40
  6. Step 6: Final answer
    x = 14,818.87

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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.