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Finding the Fourth Proportional to 5,040.64, 7,560.93 and 1,962.64

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Solution

The fourth proportional to 5,040.64, 7,560.93 and 1,962.64 is: 2,943.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,040.64 : 7,560.93 = 1,962.64 : x
  2. Step 2: Convert to fraction form
    5,040.64/7,560.93 = 1,962.64/x
  3. Step 3: Cross multiply
    5,040.64x = 7,560.93 × 1,962.64
  4. Step 4: Simplify right side
    5,040.64x = 14,839,383.66
  5. Step 5: Solve for x
    x = 14,839,383.66/5,040.64
  6. Step 6: Final answer
    x = 2,943.95

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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.