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Finding the Fourth Proportional to 18,482.10, 27,718.02 and 5,330.94

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Solution

The fourth proportional to 18,482.10, 27,718.02 and 5,330.94 is: 7,994.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,482.10 : 27,718.02 = 5,330.94 : x
  2. Step 2: Convert to fraction form
    18,482.10/27,718.02 = 5,330.94/x
  3. Step 3: Cross multiply
    18,482.10x = 27,718.02 × 5,330.94
  4. Step 4: Simplify right side
    18,482.10x = 147,763,101.54
  5. Step 5: Solve for x
    x = 147,763,101.54/18,482.10
  6. Step 6: Final answer
    x = 7,994.93

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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.