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Finding the Fourth Proportional to 18,153.98, 25,055.22 and 11,084.48

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Solution

The fourth proportional to 18,153.98, 25,055.22 and 11,084.48 is: 15,298.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,153.98 : 25,055.22 = 11,084.48 : x
  2. Step 2: Convert to fraction form
    18,153.98/25,055.22 = 11,084.48/x
  3. Step 3: Cross multiply
    18,153.98x = 25,055.22 × 11,084.48
  4. Step 4: Simplify right side
    18,153.98x = 277,724,084.99
  5. Step 5: Solve for x
    x = 277,724,084.99/18,153.98
  6. Step 6: Final answer
    x = 15,298.25

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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.