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Finding the Fourth Proportional to 5,362.78, 7,400.91 and 2,973.00

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Solution

The fourth proportional to 5,362.78, 7,400.91 and 2,973.00 is: 4,102.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,362.78 : 7,400.91 = 2,973.00 : x
  2. Step 2: Convert to fraction form
    5,362.78/7,400.91 = 2,973.00/x
  3. Step 3: Cross multiply
    5,362.78x = 7,400.91 × 2,973.00
  4. Step 4: Simplify right side
    5,362.78x = 22,002,935.97
  5. Step 5: Solve for x
    x = 22,002,935.97/5,362.78
  6. Step 6: Final answer
    x = 4,102.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.