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Finding the Fourth Proportional to 12,381.17, 17,084.99 and 6,792.17

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Solution

The fourth proportional to 12,381.17, 17,084.99 and 6,792.17 is: 9,372.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,381.17 : 17,084.99 = 6,792.17 : x
  2. Step 2: Convert to fraction form
    12,381.17/17,084.99 = 6,792.17/x
  3. Step 3: Cross multiply
    12,381.17x = 17,084.99 × 6,792.17
  4. Step 4: Simplify right side
    12,381.17x = 116,044,088.08
  5. Step 5: Solve for x
    x = 116,044,088.08/12,381.17
  6. Step 6: Final answer
    x = 9,372.63

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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.