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Finding the Fourth Proportional to 40,388.55, 55,736.40 and 22,483.52

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Solution

The fourth proportional to 40,388.55, 55,736.40 and 22,483.52 is: 31,027.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,388.55 : 55,736.40 = 22,483.52 : x
  2. Step 2: Convert to fraction form
    40,388.55/55,736.40 = 22,483.52/x
  3. Step 3: Cross multiply
    40,388.55x = 55,736.40 × 22,483.52
  4. Step 4: Simplify right side
    40,388.55x = 1,253,150,185.45
  5. Step 5: Solve for x
    x = 1,253,150,185.45/40,388.55
  6. Step 6: Final answer
    x = 31,027.36

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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.