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Finding the Fourth Proportional to 58,785.71, 81,121.97 and 34,911.77

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Solution

The fourth proportional to 58,785.71, 81,121.97 and 34,911.77 is: 48,176.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,785.71 : 81,121.97 = 34,911.77 : x
  2. Step 2: Convert to fraction form
    58,785.71/81,121.97 = 34,911.77/x
  3. Step 3: Cross multiply
    58,785.71x = 81,121.97 × 34,911.77
  4. Step 4: Simplify right side
    58,785.71x = 2,832,111,240.26
  5. Step 5: Solve for x
    x = 2,832,111,240.26/58,785.71
  6. Step 6: Final answer
    x = 48,176.87

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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.