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Finding the Fourth Proportional to 16,653.18, 22,959 and 16,137.21

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Solution

The fourth proportional to 16,653.18, 22,959 and 16,137.21 is: 22,247.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,653.18 : 22,959 = 16,137.21 : x
  2. Step 2: Convert to fraction form
    16,653.18/22,959 = 16,137.21/x
  3. Step 3: Cross multiply
    16,653.18x = 22,959 × 16,137.21
  4. Step 4: Simplify right side
    16,653.18x = 370,494,204.39
  5. Step 5: Solve for x
    x = 370,494,204.39/16,653.18
  6. Step 6: Final answer
    x = 22,247.66

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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.