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Finding the Fourth Proportional to 11,057.64, 16,581.60 and 4,482.08

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Solution

The fourth proportional to 11,057.64, 16,581.60 and 4,482.08 is: 6,721.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,057.64 : 16,581.60 = 4,482.08 : x
  2. Step 2: Convert to fraction form
    11,057.64/16,581.60 = 4,482.08/x
  3. Step 3: Cross multiply
    11,057.64x = 16,581.60 × 4,482.08
  4. Step 4: Simplify right side
    11,057.64x = 74,320,057.73
  5. Step 5: Solve for x
    x = 74,320,057.73/11,057.64
  6. Step 6: Final answer
    x = 6,721.15

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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.