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Finding the Fourth Proportional to 18,274.55, 27,412.02 and 6,587.87

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Solution

The fourth proportional to 18,274.55, 27,412.02 and 6,587.87 is: 9,881.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,274.55 : 27,412.02 = 6,587.87 : x
  2. Step 2: Convert to fraction form
    18,274.55/27,412.02 = 6,587.87/x
  3. Step 3: Cross multiply
    18,274.55x = 27,412.02 × 6,587.87
  4. Step 4: Simplify right side
    18,274.55x = 180,586,687.14
  5. Step 5: Solve for x
    x = 180,586,687.14/18,274.55
  6. Step 6: Final answer
    x = 9,881.87

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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.