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Finding the Fourth Proportional to 3,864.66, 5,796.14 and 1,091.50

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Solution

The fourth proportional to 3,864.66, 5,796.14 and 1,091.50 is: 1,637.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,864.66 : 5,796.14 = 1,091.50 : x
  2. Step 2: Convert to fraction form
    3,864.66/5,796.14 = 1,091.50/x
  3. Step 3: Cross multiply
    3,864.66x = 5,796.14 × 1,091.50
  4. Step 4: Simplify right side
    3,864.66x = 6,326,486.81
  5. Step 5: Solve for x
    x = 6,326,486.81/3,864.66
  6. Step 6: Final answer
    x = 1,637.01

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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.