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Finding the Fourth Proportional to 67,772.70, 93,471.09 and 47,696.10

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Solution

The fourth proportional to 67,772.70, 93,471.09 and 47,696.10 is: 65,781.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,772.70 : 93,471.09 = 47,696.10 : x
  2. Step 2: Convert to fraction form
    67,772.70/93,471.09 = 47,696.10/x
  3. Step 3: Cross multiply
    67,772.70x = 93,471.09 × 47,696.10
  4. Step 4: Simplify right side
    67,772.70x = 4,458,206,455.75
  5. Step 5: Solve for x
    x = 4,458,206,455.75/67,772.70
  6. Step 6: Final answer
    x = 65,781.74

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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.