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Finding the Fourth Proportional to 61,900.71, 85,424.94 and 35,042.73

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Solution

The fourth proportional to 61,900.71, 85,424.94 and 35,042.73 is: 48,360.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,900.71 : 85,424.94 = 35,042.73 : x
  2. Step 2: Convert to fraction form
    61,900.71/85,424.94 = 35,042.73/x
  3. Step 3: Cross multiply
    61,900.71x = 85,424.94 × 35,042.73
  4. Step 4: Simplify right side
    61,900.71x = 2,993,523,107.69
  5. Step 5: Solve for x
    x = 2,993,523,107.69/61,900.71
  6. Step 6: Final answer
    x = 48,360.08

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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.