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Finding the Fourth Proportional to 17,333.21, 23,919.84 and 9,781.15

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Solution

The fourth proportional to 17,333.21, 23,919.84 and 9,781.15 is: 13,497.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,333.21 : 23,919.84 = 9,781.15 : x
  2. Step 2: Convert to fraction form
    17,333.21/23,919.84 = 9,781.15/x
  3. Step 3: Cross multiply
    17,333.21x = 23,919.84 × 9,781.15
  4. Step 4: Simplify right side
    17,333.21x = 233,963,374.51
  5. Step 5: Solve for x
    x = 233,963,374.51/17,333.21
  6. Step 6: Final answer
    x = 13,497.98

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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.