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Finding the Fourth Proportional to 8,777.99, 12,101.47 and 5,940.87

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Solution

The fourth proportional to 8,777.99, 12,101.47 and 5,940.87 is: 8,190.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,777.99 : 12,101.47 = 5,940.87 : x
  2. Step 2: Convert to fraction form
    8,777.99/12,101.47 = 5,940.87/x
  3. Step 3: Cross multiply
    8,777.99x = 12,101.47 × 5,940.87
  4. Step 4: Simplify right side
    8,777.99x = 71,893,260.08
  5. Step 5: Solve for x
    x = 71,893,260.08/8,777.99
  6. Step 6: Final answer
    x = 8,190.17

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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.