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Finding the Fourth Proportional to 8,736.77, 12,055.13 and 4,960.08

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Solution

The fourth proportional to 8,736.77, 12,055.13 and 4,960.08 is: 6,843.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,736.77 : 12,055.13 = 4,960.08 : x
  2. Step 2: Convert to fraction form
    8,736.77/12,055.13 = 4,960.08/x
  3. Step 3: Cross multiply
    8,736.77x = 12,055.13 × 4,960.08
  4. Step 4: Simplify right side
    8,736.77x = 59,794,403.01
  5. Step 5: Solve for x
    x = 59,794,403.01/8,736.77
  6. Step 6: Final answer
    x = 6,843.99

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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.