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Finding the Fourth Proportional to 17,939.03, 26,883.98 and 9,155.53

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Solution

The fourth proportional to 17,939.03, 26,883.98 and 9,155.53 is: 13,720.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,939.03 : 26,883.98 = 9,155.53 : x
  2. Step 2: Convert to fraction form
    17,939.03/26,883.98 = 9,155.53/x
  3. Step 3: Cross multiply
    17,939.03x = 26,883.98 × 9,155.53
  4. Step 4: Simplify right side
    17,939.03x = 246,136,905.21
  5. Step 5: Solve for x
    x = 246,136,905.21/17,939.03
  6. Step 6: Final answer
    x = 13,720.75

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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.