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Finding the Fourth Proportional to 5,424.76, 7,486.18 and 2,940.76

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Solution

The fourth proportional to 5,424.76, 7,486.18 and 2,940.76 is: 4,058.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,424.76 : 7,486.18 = 2,940.76 : x
  2. Step 2: Convert to fraction form
    5,424.76/7,486.18 = 2,940.76/x
  3. Step 3: Cross multiply
    5,424.76x = 7,486.18 × 2,940.76
  4. Step 4: Simplify right side
    5,424.76x = 22,015,058.70
  5. Step 5: Solve for x
    x = 22,015,058.70/5,424.76
  6. Step 6: Final answer
    x = 4,058.25

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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.