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Finding the Fourth Proportional to 38,909.92, 58,370.64 and 14,284

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Solution

The fourth proportional to 38,909.92, 58,370.64 and 14,284 is: 21,428.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,909.92 : 58,370.64 = 14,284 : x
  2. Step 2: Convert to fraction form
    38,909.92/58,370.64 = 14,284/x
  3. Step 3: Cross multiply
    38,909.92x = 58,370.64 × 14,284
  4. Step 4: Simplify right side
    38,909.92x = 833,766,221.76
  5. Step 5: Solve for x
    x = 833,766,221.76/38,909.92
  6. Step 6: Final answer
    x = 21,428.11

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