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Finding the Fourth Proportional to 40,203.63, 55,481.40 and 22,300.40

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Solution

The fourth proportional to 40,203.63, 55,481.40 and 22,300.40 is: 30,774.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,203.63 : 55,481.40 = 22,300.40 : x
  2. Step 2: Convert to fraction form
    40,203.63/55,481.40 = 22,300.40/x
  3. Step 3: Cross multiply
    40,203.63x = 55,481.40 × 22,300.40
  4. Step 4: Simplify right side
    40,203.63x = 1,237,257,135.15
  5. Step 5: Solve for x
    x = 1,237,257,135.15/40,203.63
  6. Step 6: Final answer
    x = 30,774.76

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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.