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Finding the Fourth Proportional to 61,760.71, 85,231.34 and 37,900.54

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Solution

The fourth proportional to 61,760.71, 85,231.34 and 37,900.54 is: 52,303.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,760.71 : 85,231.34 = 37,900.54 : x
  2. Step 2: Convert to fraction form
    61,760.71/85,231.34 = 37,900.54/x
  3. Step 3: Cross multiply
    61,760.71x = 85,231.34 × 37,900.54
  4. Step 4: Simplify right side
    61,760.71x = 3,230,313,810.92
  5. Step 5: Solve for x
    x = 3,230,313,810.92/61,760.71
  6. Step 6: Final answer
    x = 52,303.70

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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.