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Finding the Fourth Proportional to 11,003.65, 16,505.47 and 3,893.16

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Solution

The fourth proportional to 11,003.65, 16,505.47 and 3,893.16 is: 5,839.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,003.65 : 16,505.47 = 3,893.16 : x
  2. Step 2: Convert to fraction form
    11,003.65/16,505.47 = 3,893.16/x
  3. Step 3: Cross multiply
    11,003.65x = 16,505.47 × 3,893.16
  4. Step 4: Simplify right side
    11,003.65x = 64,258,502.35
  5. Step 5: Solve for x
    x = 64,258,502.35/11,003.65
  6. Step 6: Final answer
    x = 5,839.75

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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.