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Finding the Fourth Proportional to 61,697.70, 85,142.85 and 33,403.41

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Solution

The fourth proportional to 61,697.70, 85,142.85 and 33,403.41 is: 46,096.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,697.70 : 85,142.85 = 33,403.41 : x
  2. Step 2: Convert to fraction form
    61,697.70/85,142.85 = 33,403.41/x
  3. Step 3: Cross multiply
    61,697.70x = 85,142.85 × 33,403.41
  4. Step 4: Simplify right side
    61,697.70x = 2,844,061,527.12
  5. Step 5: Solve for x
    x = 2,844,061,527.12/61,697.70
  6. Step 6: Final answer
    x = 46,096.72

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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.