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Finding the Fourth Proportional to 8,792.16, 13,087.80 and 8,660.94

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Solution

The fourth proportional to 8,792.16, 13,087.80 and 8,660.94 is: 12,892.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,792.16 : 13,087.80 = 8,660.94 : x
  2. Step 2: Convert to fraction form
    8,792.16/13,087.80 = 8,660.94/x
  3. Step 3: Cross multiply
    8,792.16x = 13,087.80 × 8,660.94
  4. Step 4: Simplify right side
    8,792.16x = 113,352,650.53
  5. Step 5: Solve for x
    x = 113,352,650.53/8,792.16
  6. Step 6: Final answer
    x = 12,892.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.