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Finding the Fourth Proportional to 8,340.76, 11,504.93 and 5,821.95

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Solution

The fourth proportional to 8,340.76, 11,504.93 and 5,821.95 is: 8,030.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,340.76 : 11,504.93 = 5,821.95 : x
  2. Step 2: Convert to fraction form
    8,340.76/11,504.93 = 5,821.95/x
  3. Step 3: Cross multiply
    8,340.76x = 11,504.93 × 5,821.95
  4. Step 4: Simplify right side
    8,340.76x = 66,981,101.14
  5. Step 5: Solve for x
    x = 66,981,101.14/8,340.76
  6. Step 6: Final answer
    x = 8,030.58

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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.