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Finding the Fourth Proportional to 18,112.84, 24,993 and 10,351.06

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Solution

The fourth proportional to 18,112.84, 24,993 and 10,351.06 is: 14,282.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,112.84 : 24,993 = 10,351.06 : x
  2. Step 2: Convert to fraction form
    18,112.84/24,993 = 10,351.06/x
  3. Step 3: Cross multiply
    18,112.84x = 24,993 × 10,351.06
  4. Step 4: Simplify right side
    18,112.84x = 258,703,980.10
  5. Step 5: Solve for x
    x = 258,703,980.10/18,112.84
  6. Step 6: Final answer
    x = 14,282.91

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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.