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Finding the Fourth Proportional to 69,718.58, 104,531.64 and 25,340.06

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Solution

The fourth proportional to 69,718.58, 104,531.64 and 25,340.06 is: 37,993.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,718.58 : 104,531.64 = 25,340.06 : x
  2. Step 2: Convert to fraction form
    69,718.58/104,531.64 = 25,340.06/x
  3. Step 3: Cross multiply
    69,718.58x = 104,531.64 × 25,340.06
  4. Step 4: Simplify right side
    69,718.58x = 2,648,838,029.50
  5. Step 5: Solve for x
    x = 2,648,838,029.50/69,718.58
  6. Step 6: Final answer
    x = 37,993.29

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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.