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Finding the Fourth Proportional to 61,890.19, 85,408.56 and 33,595.88

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Solution

The fourth proportional to 61,890.19, 85,408.56 and 33,595.88 is: 46,362.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,890.19 : 85,408.56 = 33,595.88 : x
  2. Step 2: Convert to fraction form
    61,890.19/85,408.56 = 33,595.88/x
  3. Step 3: Cross multiply
    61,890.19x = 85,408.56 × 33,595.88
  4. Step 4: Simplify right side
    61,890.19x = 2,869,375,305.69
  5. Step 5: Solve for x
    x = 2,869,375,305.69/61,890.19
  6. Step 6: Final answer
    x = 46,362.36

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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.