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Finding the Fourth Proportional to 61,977.72, 85,505.58 and 38,096.76

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Solution

The fourth proportional to 61,977.72, 85,505.58 and 38,096.76 is: 52,558.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,977.72 : 85,505.58 = 38,096.76 : x
  2. Step 2: Convert to fraction form
    61,977.72/85,505.58 = 38,096.76/x
  3. Step 3: Cross multiply
    61,977.72x = 85,505.58 × 38,096.76
  4. Step 4: Simplify right side
    61,977.72x = 3,257,485,559.92
  5. Step 5: Solve for x
    x = 3,257,485,559.92/61,977.72
  6. Step 6: Final answer
    x = 52,558.98

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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.