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Finding the Fourth Proportional to 69,587.58, 104,384.88 and 19,671.26

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Solution

The fourth proportional to 69,587.58, 104,384.88 and 19,671.26 is: 29,507.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,587.58 : 104,384.88 = 19,671.26 : x
  2. Step 2: Convert to fraction form
    69,587.58/104,384.88 = 19,671.26/x
  3. Step 3: Cross multiply
    69,587.58x = 104,384.88 × 19,671.26
  4. Step 4: Simplify right side
    69,587.58x = 2,053,382,114.55
  5. Step 5: Solve for x
    x = 2,053,382,114.55/69,587.58
  6. Step 6: Final answer
    x = 29,507.88

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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.