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Finding the Fourth Proportional to 61,890.64, 85,408.88 and 33,596.32

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Solution

The fourth proportional to 61,890.64, 85,408.88 and 33,596.32 is: 46,362.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,890.64 : 85,408.88 = 33,596.32 : x
  2. Step 2: Convert to fraction form
    61,890.64/85,408.88 = 33,596.32/x
  3. Step 3: Cross multiply
    61,890.64x = 85,408.88 × 33,596.32
  4. Step 4: Simplify right side
    61,890.64x = 2,869,424,063.32
  5. Step 5: Solve for x
    x = 2,869,424,063.32/61,890.64
  6. Step 6: Final answer
    x = 46,362.81

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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.