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Finding the Fourth Proportional to 7,388.60, 11,058.60 and 5,736.20

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Solution

The fourth proportional to 7,388.60, 11,058.60 and 5,736.20 is: 8,585.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,388.60 : 11,058.60 = 5,736.20 : x
  2. Step 2: Convert to fraction form
    7,388.60/11,058.60 = 5,736.20/x
  3. Step 3: Cross multiply
    7,388.60x = 11,058.60 × 5,736.20
  4. Step 4: Simplify right side
    7,388.60x = 63,434,341.32
  5. Step 5: Solve for x
    x = 63,434,341.32/7,388.60
  6. Step 6: Final answer
    x = 8,585.43

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1.5x scale

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.