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Finding the Fourth Proportional to 18,362.88, 27,560.31 and 9,603.93

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Solution

The fourth proportional to 18,362.88, 27,560.31 and 9,603.93 is: 14,414.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,362.88 : 27,560.31 = 9,603.93 : x
  2. Step 2: Convert to fraction form
    18,362.88/27,560.31 = 9,603.93/x
  3. Step 3: Cross multiply
    18,362.88x = 27,560.31 × 9,603.93
  4. Step 4: Simplify right side
    18,362.88x = 264,687,288.02
  5. Step 5: Solve for x
    x = 264,687,288.02/18,362.88
  6. Step 6: Final answer
    x = 14,414.26

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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.