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Finding the Fourth Proportional to 10,507.47, 15,764.25 and 3,112.07

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Solution

The fourth proportional to 10,507.47, 15,764.25 and 3,112.07 is: 4,669.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,507.47 : 15,764.25 = 3,112.07 : x
  2. Step 2: Convert to fraction form
    10,507.47/15,764.25 = 3,112.07/x
  3. Step 3: Cross multiply
    10,507.47x = 15,764.25 × 3,112.07
  4. Step 4: Simplify right side
    10,507.47x = 49,059,444.76
  5. Step 5: Solve for x
    x = 49,059,444.76/10,507.47
  6. Step 6: Final answer
    x = 4,669.01

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