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Finding the Fourth Proportional to 22,655.87, 33,975.71 and 8,612.15

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Solution

The fourth proportional to 22,655.87, 33,975.71 and 8,612.15 is: 12,915.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,655.87 : 33,975.71 = 8,612.15 : x
  2. Step 2: Convert to fraction form
    22,655.87/33,975.71 = 8,612.15/x
  3. Step 3: Cross multiply
    22,655.87x = 33,975.71 × 8,612.15
  4. Step 4: Simplify right side
    22,655.87x = 292,603,697.94
  5. Step 5: Solve for x
    x = 292,603,697.94/22,655.87
  6. Step 6: Final answer
    x = 12,915.14

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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.