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Finding the Fourth Proportional to 42,907.49, 64,361.24 and 11,742.74

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Solution

The fourth proportional to 42,907.49, 64,361.24 and 11,742.74 is: 17,614.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,907.49 : 64,361.24 = 11,742.74 : x
  2. Step 2: Convert to fraction form
    42,907.49/64,361.24 = 11,742.74/x
  3. Step 3: Cross multiply
    42,907.49x = 64,361.24 × 11,742.74
  4. Step 4: Simplify right side
    42,907.49x = 755,777,307.40
  5. Step 5: Solve for x
    x = 755,777,307.40/42,907.49
  6. Step 6: Final answer
    x = 17,614.11

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