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Finding the Fourth Proportional to 8,355.35, 12,533.04 and 3,424.10

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Solution

The fourth proportional to 8,355.35, 12,533.04 and 3,424.10 is: 5,136.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,355.35 : 12,533.04 = 3,424.10 : x
  2. Step 2: Convert to fraction form
    8,355.35/12,533.04 = 3,424.10/x
  3. Step 3: Cross multiply
    8,355.35x = 12,533.04 × 3,424.10
  4. Step 4: Simplify right side
    8,355.35x = 42,914,382.26
  5. Step 5: Solve for x
    x = 42,914,382.26/8,355.35
  6. Step 6: Final answer
    x = 5,136.16

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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.