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Finding the Fourth Proportional to 69,636.31, 96,589.76 and 67,790.59

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Solution

The fourth proportional to 69,636.31, 96,589.76 and 67,790.59 is: 94,029.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,636.31 : 96,589.76 = 67,790.59 : x
  2. Step 2: Convert to fraction form
    69,636.31/96,589.76 = 67,790.59/x
  3. Step 3: Cross multiply
    69,636.31x = 96,589.76 × 67,790.59
  4. Step 4: Simplify right side
    69,636.31x = 6,547,876,560.84
  5. Step 5: Solve for x
    x = 6,547,876,560.84/69,636.31
  6. Step 6: Final answer
    x = 94,029.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.