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Finding the Fourth Proportional to 61,921.66, 85,451.84 and 33,627.34

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Solution

The fourth proportional to 61,921.66, 85,451.84 and 33,627.34 is: 46,405.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,921.66 : 85,451.84 = 33,627.34 : x
  2. Step 2: Convert to fraction form
    61,921.66/85,451.84 = 33,627.34/x
  3. Step 3: Cross multiply
    61,921.66x = 85,451.84 × 33,627.34
  4. Step 4: Simplify right side
    61,921.66x = 2,873,518,077.31
  5. Step 5: Solve for x
    x = 2,873,518,077.31/61,921.66
  6. Step 6: Final answer
    x = 46,405.70

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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.