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Finding the Fourth Proportional to 18,344.44, 25,315.36 and 9,960.94

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Solution

The fourth proportional to 18,344.44, 25,315.36 and 9,960.94 is: 13,746.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,344.44 : 25,315.36 = 9,960.94 : x
  2. Step 2: Convert to fraction form
    18,344.44/25,315.36 = 9,960.94/x
  3. Step 3: Cross multiply
    18,344.44x = 25,315.36 × 9,960.94
  4. Step 4: Simplify right side
    18,344.44x = 252,164,782.04
  5. Step 5: Solve for x
    x = 252,164,782.04/18,344.44
  6. Step 6: Final answer
    x = 13,746.12

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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.