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Finding the Fourth Proportional to 5,415.66, 7,474.05 and 3,058.29

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Solution

The fourth proportional to 5,415.66, 7,474.05 and 3,058.29 is: 4,220.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,415.66 : 7,474.05 = 3,058.29 : x
  2. Step 2: Convert to fraction form
    5,415.66/7,474.05 = 3,058.29/x
  3. Step 3: Cross multiply
    5,415.66x = 7,474.05 × 3,058.29
  4. Step 4: Simplify right side
    5,415.66x = 22,857,812.37
  5. Step 5: Solve for x
    x = 22,857,812.37/5,415.66
  6. Step 6: Final answer
    x = 4,220.69

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1.5x scale

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.