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Finding the Fourth Proportional to 6,655.51, 9,983.31 and 2,956.75

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Solution

The fourth proportional to 6,655.51, 9,983.31 and 2,956.75 is: 4,435.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,655.51 : 9,983.31 = 2,956.75 : x
  2. Step 2: Convert to fraction form
    6,655.51/9,983.31 = 2,956.75/x
  3. Step 3: Cross multiply
    6,655.51x = 9,983.31 × 2,956.75
  4. Step 4: Simplify right side
    6,655.51x = 29,518,151.84
  5. Step 5: Solve for x
    x = 29,518,151.84/6,655.51
  6. Step 6: Final answer
    x = 4,435.14

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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.