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Finding the Fourth Proportional to 16,915.80, 23,340.06 and 9,463.80

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Solution

The fourth proportional to 16,915.80, 23,340.06 and 9,463.80 is: 13,057.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,915.80 : 23,340.06 = 9,463.80 : x
  2. Step 2: Convert to fraction form
    16,915.80/23,340.06 = 9,463.80/x
  3. Step 3: Cross multiply
    16,915.80x = 23,340.06 × 9,463.80
  4. Step 4: Simplify right side
    16,915.80x = 220,885,659.83
  5. Step 5: Solve for x
    x = 220,885,659.83/16,915.80
  6. Step 6: Final answer
    x = 13,057.95

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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.