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Finding the Fourth Proportional to 4,700.56, 7,058.84 and 3,919.76

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Solution

The fourth proportional to 4,700.56, 7,058.84 and 3,919.76 is: 5,886.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,700.56 : 7,058.84 = 3,919.76 : x
  2. Step 2: Convert to fraction form
    4,700.56/7,058.84 = 3,919.76/x
  3. Step 3: Cross multiply
    4,700.56x = 7,058.84 × 3,919.76
  4. Step 4: Simplify right side
    4,700.56x = 27,668,958.68
  5. Step 5: Solve for x
    x = 27,668,958.68/4,700.56
  6. Step 6: Final answer
    x = 5,886.31

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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.