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Finding the Fourth Proportional to 11,866.80, 17,800.18 and 4,850.11

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Solution

The fourth proportional to 11,866.80, 17,800.18 and 4,850.11 is: 7,275.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,866.80 : 17,800.18 = 4,850.11 : x
  2. Step 2: Convert to fraction form
    11,866.80/17,800.18 = 4,850.11/x
  3. Step 3: Cross multiply
    11,866.80x = 17,800.18 × 4,850.11
  4. Step 4: Simplify right side
    11,866.80x = 86,332,831.02
  5. Step 5: Solve for x
    x = 86,332,831.02/11,866.80
  6. Step 6: Final answer
    x = 7,275.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.