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Finding the Fourth Proportional to 69,782.61, 104,714.93 and 25,412.03

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Solution

The fourth proportional to 69,782.61, 104,714.93 and 25,412.03 is: 38,132.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,782.61 : 104,714.93 = 25,412.03 : x
  2. Step 2: Convert to fraction form
    69,782.61/104,714.93 = 25,412.03/x
  3. Step 3: Cross multiply
    69,782.61x = 104,714.93 × 25,412.03
  4. Step 4: Simplify right side
    69,782.61x = 2,661,018,732.30
  5. Step 5: Solve for x
    x = 2,661,018,732.30/69,782.61
  6. Step 6: Final answer
    x = 38,132.98

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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.