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Finding the Fourth Proportional to 17,899.64, 24,728.03 and 11,781.77

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Solution

The fourth proportional to 17,899.64, 24,728.03 and 11,781.77 is: 16,276.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,899.64 : 24,728.03 = 11,781.77 : x
  2. Step 2: Convert to fraction form
    17,899.64/24,728.03 = 11,781.77/x
  3. Step 3: Cross multiply
    17,899.64x = 24,728.03 × 11,781.77
  4. Step 4: Simplify right side
    17,899.64x = 291,339,962.01
  5. Step 5: Solve for x
    x = 291,339,962.01/17,899.64
  6. Step 6: Final answer
    x = 16,276.30

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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.