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Finding the Fourth Proportional to 9,998.71, 13,797.14 and 5,522.04

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Solution

The fourth proportional to 9,998.71, 13,797.14 and 5,522.04 is: 7,619.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,998.71 : 13,797.14 = 5,522.04 : x
  2. Step 2: Convert to fraction form
    9,998.71/13,797.14 = 5,522.04/x
  3. Step 3: Cross multiply
    9,998.71x = 13,797.14 × 5,522.04
  4. Step 4: Simplify right side
    9,998.71x = 76,188,331.36
  5. Step 5: Solve for x
    x = 76,188,331.36/9,998.71
  6. Step 6: Final answer
    x = 7,619.82

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Half scale
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Double scale
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Similar ratio
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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.