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Finding the Fourth Proportional to 69,625.94, 96,083.70 and 39,410.72

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Solution

The fourth proportional to 69,625.94, 96,083.70 and 39,410.72 is: 54,386.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,625.94 : 96,083.70 = 39,410.72 : x
  2. Step 2: Convert to fraction form
    69,625.94/96,083.70 = 39,410.72/x
  3. Step 3: Cross multiply
    69,625.94x = 96,083.70 × 39,410.72
  4. Step 4: Simplify right side
    69,625.94x = 3,786,727,797.26
  5. Step 5: Solve for x
    x = 3,786,727,797.26/69,625.94
  6. Step 6: Final answer
    x = 54,386.74

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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.