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Finding the Fourth Proportional to 18,040.70, 24,880.04 and 11,326.95

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Solution

The fourth proportional to 18,040.70, 24,880.04 and 11,326.95 is: 15,621.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,040.70 : 24,880.04 = 11,326.95 : x
  2. Step 2: Convert to fraction form
    18,040.70/24,880.04 = 11,326.95/x
  3. Step 3: Cross multiply
    18,040.70x = 24,880.04 × 11,326.95
  4. Step 4: Simplify right side
    18,040.70x = 281,814,969.08
  5. Step 5: Solve for x
    x = 281,814,969.08/18,040.70
  6. Step 6: Final answer
    x = 15,621.07

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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.