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Finding the Fourth Proportional to 3,507.71, 5,261.79 and 1,167.62

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Solution

The fourth proportional to 3,507.71, 5,261.79 and 1,167.62 is: 1,751.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,507.71 : 5,261.79 = 1,167.62 : x
  2. Step 2: Convert to fraction form
    3,507.71/5,261.79 = 1,167.62/x
  3. Step 3: Cross multiply
    3,507.71x = 5,261.79 × 1,167.62
  4. Step 4: Simplify right side
    3,507.71x = 6,143,744.93
  5. Step 5: Solve for x
    x = 6,143,744.93/3,507.71
  6. Step 6: Final answer
    x = 1,751.50

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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.