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Finding the Fourth Proportional to 5,427.63, 7,490.17 and 2,943.63

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Solution

The fourth proportional to 5,427.63, 7,490.17 and 2,943.63 is: 4,062.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,427.63 : 7,490.17 = 2,943.63 : x
  2. Step 2: Convert to fraction form
    5,427.63/7,490.17 = 2,943.63/x
  3. Step 3: Cross multiply
    5,427.63x = 7,490.17 × 2,943.63
  4. Step 4: Simplify right side
    5,427.63x = 22,048,289.12
  5. Step 5: Solve for x
    x = 22,048,289.12/5,427.63
  6. Step 6: Final answer
    x = 4,062.23

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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.