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Finding the Fourth Proportional to 5,561.88, 7,670.97 and 3,572.64

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Solution

The fourth proportional to 5,561.88, 7,670.97 and 3,572.64 is: 4,927.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,561.88 : 7,670.97 = 3,572.64 : x
  2. Step 2: Convert to fraction form
    5,561.88/7,670.97 = 3,572.64/x
  3. Step 3: Cross multiply
    5,561.88x = 7,670.97 × 3,572.64
  4. Step 4: Simplify right side
    5,561.88x = 27,405,614.26
  5. Step 5: Solve for x
    x = 27,405,614.26/5,561.88
  6. Step 6: Final answer
    x = 4,927.40

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.