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Finding the Fourth Proportional to 15,645.73, 21,571.73 and 10,332.13

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Solution

The fourth proportional to 15,645.73, 21,571.73 and 10,332.13 is: 14,245.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,645.73 : 21,571.73 = 10,332.13 : x
  2. Step 2: Convert to fraction form
    15,645.73/21,571.73 = 10,332.13/x
  3. Step 3: Cross multiply
    15,645.73x = 21,571.73 × 10,332.13
  4. Step 4: Simplify right side
    15,645.73x = 222,881,851.84
  5. Step 5: Solve for x
    x = 222,881,851.84/15,645.73
  6. Step 6: Final answer
    x = 14,245.54

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