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Finding the Fourth Proportional to 22,436.53, 33,640.77 and 8,389.16

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Solution

The fourth proportional to 22,436.53, 33,640.77 and 8,389.16 is: 12,578.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,436.53 : 33,640.77 = 8,389.16 : x
  2. Step 2: Convert to fraction form
    22,436.53/33,640.77 = 8,389.16/x
  3. Step 3: Cross multiply
    22,436.53x = 33,640.77 × 8,389.16
  4. Step 4: Simplify right side
    22,436.53x = 282,217,802.05
  5. Step 5: Solve for x
    x = 282,217,802.05/22,436.53
  6. Step 6: Final answer
    x = 12,578.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.