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Finding the Fourth Proportional to 69,776.67, 104,630.46 and 29,789.40

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Solution

The fourth proportional to 69,776.67, 104,630.46 and 29,789.40 is: 44,669.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,776.67 : 104,630.46 = 29,789.40 : x
  2. Step 2: Convert to fraction form
    69,776.67/104,630.46 = 29,789.40/x
  3. Step 3: Cross multiply
    69,776.67x = 104,630.46 × 29,789.40
  4. Step 4: Simplify right side
    69,776.67x = 3,116,878,625.12
  5. Step 5: Solve for x
    x = 3,116,878,625.12/69,776.67
  6. Step 6: Final answer
    x = 44,669.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.