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Finding the Fourth Proportional to 8,410.93, 11,618.87 and 7,968.07

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Solution

The fourth proportional to 8,410.93, 11,618.87 and 7,968.07 is: 11,007.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,410.93 : 11,618.87 = 7,968.07 : x
  2. Step 2: Convert to fraction form
    8,410.93/11,618.87 = 7,968.07/x
  3. Step 3: Cross multiply
    8,410.93x = 11,618.87 × 7,968.07
  4. Step 4: Simplify right side
    8,410.93x = 92,579,969.48
  5. Step 5: Solve for x
    x = 92,579,969.48/8,410.93
  6. Step 6: Final answer
    x = 11,007.10

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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.