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Finding the Fourth Proportional to 69,929.76, 96,499.26 and 39,714.33

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Solution

The fourth proportional to 69,929.76, 96,499.26 and 39,714.33 is: 54,803.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,929.76 : 96,499.26 = 39,714.33 : x
  2. Step 2: Convert to fraction form
    69,929.76/96,499.26 = 39,714.33/x
  3. Step 3: Cross multiply
    69,929.76x = 96,499.26 × 39,714.33
  4. Step 4: Simplify right side
    69,929.76x = 3,832,403,456.40
  5. Step 5: Solve for x
    x = 3,832,403,456.40/69,929.76
  6. Step 6: Final answer
    x = 54,803.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.