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Finding the Fourth Proportional to 16,355.75, 22,573.88 and 9,640.98

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Solution

The fourth proportional to 16,355.75, 22,573.88 and 9,640.98 is: 13,306.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,355.75 : 22,573.88 = 9,640.98 : x
  2. Step 2: Convert to fraction form
    16,355.75/22,573.88 = 9,640.98/x
  3. Step 3: Cross multiply
    16,355.75x = 22,573.88 × 9,640.98
  4. Step 4: Simplify right side
    16,355.75x = 217,634,277.40
  5. Step 5: Solve for x
    x = 217,634,277.40/16,355.75
  6. Step 6: Final answer
    x = 13,306.29

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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.