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Finding the Fourth Proportional to 9,792.99, 13,511.97 and 6,612.12

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Solution

The fourth proportional to 9,792.99, 13,511.97 and 6,612.12 is: 9,123.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,792.99 : 13,511.97 = 6,612.12 : x
  2. Step 2: Convert to fraction form
    9,792.99/13,511.97 = 6,612.12/x
  3. Step 3: Cross multiply
    9,792.99x = 13,511.97 × 6,612.12
  4. Step 4: Simplify right side
    9,792.99x = 89,342,767.08
  5. Step 5: Solve for x
    x = 89,342,767.08/9,792.99
  6. Step 6: Final answer
    x = 9,123.13

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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.