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Finding the Fourth Proportional to 57,967.20, 86,963.40 and 33,019.20

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Solution

The fourth proportional to 57,967.20, 86,963.40 and 33,019.20 is: 49,535.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,967.20 : 86,963.40 = 33,019.20 : x
  2. Step 2: Convert to fraction form
    57,967.20/86,963.40 = 33,019.20/x
  3. Step 3: Cross multiply
    57,967.20x = 86,963.40 × 33,019.20
  4. Step 4: Simplify right side
    57,967.20x = 2,871,461,897.28
  5. Step 5: Solve for x
    x = 2,871,461,897.28/57,967.20
  6. Step 6: Final answer
    x = 49,535.98

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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.