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Finding the Fourth Proportional to 61,861.86, 85,438.98 and 41,801.58

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Solution

The fourth proportional to 61,861.86, 85,438.98 and 41,801.58 is: 57,733.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,861.86 : 85,438.98 = 41,801.58 : x
  2. Step 2: Convert to fraction form
    61,861.86/85,438.98 = 41,801.58/x
  3. Step 3: Cross multiply
    61,861.86x = 85,438.98 × 41,801.58
  4. Step 4: Simplify right side
    61,861.86x = 3,571,484,357.59
  5. Step 5: Solve for x
    x = 3,571,484,357.59/61,861.86
  6. Step 6: Final answer
    x = 57,733.22

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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.