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Finding the Fourth Proportional to 16,361.71, 22,579.72 and 9,192.89

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Solution

The fourth proportional to 16,361.71, 22,579.72 and 9,192.89 is: 12,686.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,361.71 : 22,579.72 = 9,192.89 : x
  2. Step 2: Convert to fraction form
    16,361.71/22,579.72 = 9,192.89/x
  3. Step 3: Cross multiply
    16,361.71x = 22,579.72 × 9,192.89
  4. Step 4: Simplify right side
    16,361.71x = 207,572,915.66
  5. Step 5: Solve for x
    x = 207,572,915.66/16,361.71
  6. Step 6: Final answer
    x = 12,686.51

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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.