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Finding the Fourth Proportional to 18,065.12, 27,094.94 and 4,918.53

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Solution

The fourth proportional to 18,065.12, 27,094.94 and 4,918.53 is: 7,377.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,065.12 : 27,094.94 = 4,918.53 : x
  2. Step 2: Convert to fraction form
    18,065.12/27,094.94 = 4,918.53/x
  3. Step 3: Cross multiply
    18,065.12x = 27,094.94 × 4,918.53
  4. Step 4: Simplify right side
    18,065.12x = 133,267,152.06
  5. Step 5: Solve for x
    x = 133,267,152.06/18,065.12
  6. Step 6: Final answer
    x = 7,377.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.