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Finding the Fourth Proportional to 18,291.17, 27,431.08 and 6,602.87

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Solution

The fourth proportional to 18,291.17, 27,431.08 and 6,602.87 is: 9,902.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,291.17 : 27,431.08 = 6,602.87 : x
  2. Step 2: Convert to fraction form
    18,291.17/27,431.08 = 6,602.87/x
  3. Step 3: Cross multiply
    18,291.17x = 27,431.08 × 6,602.87
  4. Step 4: Simplify right side
    18,291.17x = 181,123,907.27
  5. Step 5: Solve for x
    x = 181,123,907.27/18,291.17
  6. Step 6: Final answer
    x = 9,902.26

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1.5x scale

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.