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Finding the Fourth Proportional to 8,737.21, 12,057.83 and 5,011.21

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Solution

The fourth proportional to 8,737.21, 12,057.83 and 5,011.21 is: 6,915.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,737.21 : 12,057.83 = 5,011.21 : x
  2. Step 2: Convert to fraction form
    8,737.21/12,057.83 = 5,011.21/x
  3. Step 3: Cross multiply
    8,737.21x = 12,057.83 × 5,011.21
  4. Step 4: Simplify right side
    8,737.21x = 60,424,293.22
  5. Step 5: Solve for x
    x = 60,424,293.22/8,737.21
  6. Step 6: Final answer
    x = 6,915.74

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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.