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Finding the Fourth Proportional to 22,688.92, 34,033.38 and 8,645.68

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Solution

The fourth proportional to 22,688.92, 34,033.38 and 8,645.68 is: 12,968.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,688.92 : 34,033.38 = 8,645.68 : x
  2. Step 2: Convert to fraction form
    22,688.92/34,033.38 = 8,645.68/x
  3. Step 3: Cross multiply
    22,688.92x = 34,033.38 × 8,645.68
  4. Step 4: Simplify right side
    22,688.92x = 294,241,712.80
  5. Step 5: Solve for x
    x = 294,241,712.80/22,688.92
  6. Step 6: Final answer
    x = 12,968.52

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1.5x scale

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.