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Finding the Fourth Proportional to 12,136.43, 16,746.04 and 6,830.12

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Solution

The fourth proportional to 12,136.43, 16,746.04 and 6,830.12 is: 9,424.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,136.43 : 16,746.04 = 6,830.12 : x
  2. Step 2: Convert to fraction form
    12,136.43/16,746.04 = 6,830.12/x
  3. Step 3: Cross multiply
    12,136.43x = 16,746.04 × 6,830.12
  4. Step 4: Simplify right side
    12,136.43x = 114,377,513.13
  5. Step 5: Solve for x
    x = 114,377,513.13/12,136.43
  6. Step 6: Final answer
    x = 9,424.31

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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.