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Finding the Fourth Proportional to 9,101.65, 13,653.12 and 3,553.15

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Solution

The fourth proportional to 9,101.65, 13,653.12 and 3,553.15 is: 5,329.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,101.65 : 13,653.12 = 3,553.15 : x
  2. Step 2: Convert to fraction form
    9,101.65/13,653.12 = 3,553.15/x
  3. Step 3: Cross multiply
    9,101.65x = 13,653.12 × 3,553.15
  4. Step 4: Simplify right side
    9,101.65x = 48,511,583.33
  5. Step 5: Solve for x
    x = 48,511,583.33/9,101.65
  6. Step 6: Final answer
    x = 5,329.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.