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Finding the Fourth Proportional to 69,587.76, 104,387.28 and 19,668.27

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Solution

The fourth proportional to 69,587.76, 104,387.28 and 19,668.27 is: 29,504.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,587.76 : 104,387.28 = 19,668.27 : x
  2. Step 2: Convert to fraction form
    69,587.76/104,387.28 = 19,668.27/x
  3. Step 3: Cross multiply
    69,587.76x = 104,387.28 × 19,668.27
  4. Step 4: Simplify right side
    69,587.76x = 2,053,117,207.61
  5. Step 5: Solve for x
    x = 2,053,117,207.61/69,587.76
  6. Step 6: Final answer
    x = 29,504.00

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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.