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Finding the Fourth Proportional to 69,712.76, 104,612.08 and 27,585.74

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Solution

The fourth proportional to 69,712.76, 104,612.08 and 27,585.74 is: 41,395.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,712.76 : 104,612.08 = 27,585.74 : x
  2. Step 2: Convert to fraction form
    69,712.76/104,612.08 = 27,585.74/x
  3. Step 3: Cross multiply
    69,712.76x = 104,612.08 × 27,585.74
  4. Step 4: Simplify right side
    69,712.76x = 2,885,801,639.74
  5. Step 5: Solve for x
    x = 2,885,801,639.74/69,712.76
  6. Step 6: Final answer
    x = 41,395.60

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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.