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Finding the Fourth Proportional to 8,008.40, 11,048.19 and 5,022.20

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Solution

The fourth proportional to 8,008.40, 11,048.19 and 5,022.20 is: 6,928.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,008.40 : 11,048.19 = 5,022.20 : x
  2. Step 2: Convert to fraction form
    8,008.40/11,048.19 = 5,022.20/x
  3. Step 3: Cross multiply
    8,008.40x = 11,048.19 × 5,022.20
  4. Step 4: Simplify right side
    8,008.40x = 55,486,219.82
  5. Step 5: Solve for x
    x = 55,486,219.82/8,008.40
  6. Step 6: Final answer
    x = 6,928.50

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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.