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Finding the Fourth Proportional to 11,871,159.20, 17,807,257.20 and 3,892,983.20

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Solution

The fourth proportional to 11,871,159.20, 17,807,257.20 and 3,892,983.20 is: 5,839,644.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,871,159.20 : 17,807,257.20 = 3,892,983.20 : x
  2. Step 2: Convert to fraction form
    11,871,159.20/17,807,257.20 = 3,892,983.20/x
  3. Step 3: Cross multiply
    11,871,159.20x = 17,807,257.20 × 3,892,983.20
  4. Step 4: Simplify right side
    11,871,159.20x = 69,323,353,117,679.04
  5. Step 5: Solve for x
    x = 69,323,353,117,679.04/11,871,159.20
  6. Step 6: Final answer
    x = 5,839,644.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.