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Finding the Fourth Proportional to 55,221.63, 76,203.85 and 33,747.30

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Solution

The fourth proportional to 55,221.63, 76,203.85 and 33,747.30 is: 46,570.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,221.63 : 76,203.85 = 33,747.30 : x
  2. Step 2: Convert to fraction form
    55,221.63/76,203.85 = 33,747.30/x
  3. Step 3: Cross multiply
    55,221.63x = 76,203.85 × 33,747.30
  4. Step 4: Simplify right side
    55,221.63x = 2,571,674,293.25
  5. Step 5: Solve for x
    x = 2,571,674,293.25/55,221.63
  6. Step 6: Final answer
    x = 46,570.05

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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.