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Finding the Fourth Proportional to 18,295.40, 25,247.44 and 10,740.40

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Solution

The fourth proportional to 18,295.40, 25,247.44 and 10,740.40 is: 14,821.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,295.40 : 25,247.44 = 10,740.40 : x
  2. Step 2: Convert to fraction form
    18,295.40/25,247.44 = 10,740.40/x
  3. Step 3: Cross multiply
    18,295.40x = 25,247.44 × 10,740.40
  4. Step 4: Simplify right side
    18,295.40x = 271,167,604.58
  5. Step 5: Solve for x
    x = 271,167,604.58/18,295.40
  6. Step 6: Final answer
    x = 14,821.63

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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.