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Finding the Fourth Proportional to 61,871.77, 85,383.05 and 33,577.46

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Solution

The fourth proportional to 61,871.77, 85,383.05 and 33,577.46 is: 46,336.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,871.77 : 85,383.05 = 33,577.46 : x
  2. Step 2: Convert to fraction form
    61,871.77/85,383.05 = 33,577.46/x
  3. Step 3: Cross multiply
    61,871.77x = 85,383.05 × 33,577.46
  4. Step 4: Simplify right side
    61,871.77x = 2,866,945,946.05
  5. Step 5: Solve for x
    x = 2,866,945,946.05/61,871.77
  6. Step 6: Final answer
    x = 46,336.90

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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.