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Finding the Fourth Proportional to 69,890.03, 96,449.78 and 38,058.93

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Solution

The fourth proportional to 69,890.03, 96,449.78 and 38,058.93 is: 52,522.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,890.03 : 96,449.78 = 38,058.93 : x
  2. Step 2: Convert to fraction form
    69,890.03/96,449.78 = 38,058.93/x
  3. Step 3: Cross multiply
    69,890.03x = 96,449.78 × 38,058.93
  4. Step 4: Simplify right side
    69,890.03x = 3,670,774,846.18
  5. Step 5: Solve for x
    x = 3,670,774,846.18/69,890.03
  6. Step 6: Final answer
    x = 52,522.15

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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.