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Finding the Fourth Proportional to 52,586.84, 78,903.30 and 27,621.11

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Solution

The fourth proportional to 52,586.84, 78,903.30 and 27,621.11 is: 41,443.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,586.84 : 78,903.30 = 27,621.11 : x
  2. Step 2: Convert to fraction form
    52,586.84/78,903.30 = 27,621.11/x
  3. Step 3: Cross multiply
    52,586.84x = 78,903.30 × 27,621.11
  4. Step 4: Simplify right side
    52,586.84x = 2,179,396,728.66
  5. Step 5: Solve for x
    x = 2,179,396,728.66/52,586.84
  6. Step 6: Final answer
    x = 41,443.77

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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.