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Finding the Fourth Proportional to 18,396.16, 27,594.50 and 5,248.53

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Solution

The fourth proportional to 18,396.16, 27,594.50 and 5,248.53 is: 7,872.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,396.16 : 27,594.50 = 5,248.53 : x
  2. Step 2: Convert to fraction form
    18,396.16/27,594.50 = 5,248.53/x
  3. Step 3: Cross multiply
    18,396.16x = 27,594.50 × 5,248.53
  4. Step 4: Simplify right side
    18,396.16x = 144,830,561.09
  5. Step 5: Solve for x
    x = 144,830,561.09/18,396.16
  6. Step 6: Final answer
    x = 7,872.87

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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.