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Finding the Fourth Proportional to 69,888.88, 96,446.56 and 38,058

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Solution

The fourth proportional to 69,888.88, 96,446.56 and 38,058 is: 52,519.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,888.88 : 96,446.56 = 38,058 : x
  2. Step 2: Convert to fraction form
    69,888.88/96,446.56 = 38,058/x
  3. Step 3: Cross multiply
    69,888.88x = 96,446.56 × 38,058
  4. Step 4: Simplify right side
    69,888.88x = 3,670,563,180.48
  5. Step 5: Solve for x
    x = 3,670,563,180.48/69,888.88
  6. Step 6: Final answer
    x = 52,519.99

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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.