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Finding the Fourth Proportional to 8,737.49, 12,069.99 and 7,792.98

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Solution

The fourth proportional to 8,737.49, 12,069.99 and 7,792.98 is: 10,765.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,737.49 : 12,069.99 = 7,792.98 : x
  2. Step 2: Convert to fraction form
    8,737.49/12,069.99 = 7,792.98/x
  3. Step 3: Cross multiply
    8,737.49x = 12,069.99 × 7,792.98
  4. Step 4: Simplify right side
    8,737.49x = 94,061,190.67
  5. Step 5: Solve for x
    x = 94,061,190.67/8,737.49
  6. Step 6: Final answer
    x = 10,765.24

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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.