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Finding the Fourth Proportional to 6,882,497.22, 9,495,158.13 and 3,940,742.25

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Solution

The fourth proportional to 6,882,497.22, 9,495,158.13 and 3,940,742.25 is: 5,436,685.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,882,497.22 : 9,495,158.13 = 3,940,742.25 : x
  2. Step 2: Convert to fraction form
    6,882,497.22/9,495,158.13 = 3,940,742.25/x
  3. Step 3: Cross multiply
    6,882,497.22x = 9,495,158.13 × 3,940,742.25
  4. Step 4: Simplify right side
    6,882,497.22x = 37,417,970,813,321.99
  5. Step 5: Solve for x
    x = 37,417,970,813,321.99/6,882,497.22
  6. Step 6: Final answer
    x = 5,436,685.21

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Double scale
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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.