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Finding the Fourth Proportional to 17,757.21, 24,505.09 and 9,690.93

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Solution

The fourth proportional to 17,757.21, 24,505.09 and 9,690.93 is: 13,373.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,757.21 : 24,505.09 = 9,690.93 : x
  2. Step 2: Convert to fraction form
    17,757.21/24,505.09 = 9,690.93/x
  3. Step 3: Cross multiply
    17,757.21x = 24,505.09 × 9,690.93
  4. Step 4: Simplify right side
    17,757.21x = 237,477,142.12
  5. Step 5: Solve for x
    x = 237,477,142.12/17,757.21
  6. Step 6: Final answer
    x = 13,373.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.