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Finding the Fourth Proportional to 17,175.72, 23,700.90 and 9,723.72

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Solution

The fourth proportional to 17,175.72, 23,700.90 and 9,723.72 is: 13,417.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,175.72 : 23,700.90 = 9,723.72 : x
  2. Step 2: Convert to fraction form
    17,175.72/23,700.90 = 9,723.72/x
  3. Step 3: Cross multiply
    17,175.72x = 23,700.90 × 9,723.72
  4. Step 4: Simplify right side
    17,175.72x = 230,460,915.35
  5. Step 5: Solve for x
    x = 230,460,915.35/17,175.72
  6. Step 6: Final answer
    x = 13,417.83

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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.