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Finding the Fourth Proportional to 7,356.40, 11,028.04 and 4,764.40

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Solution

The fourth proportional to 7,356.40, 11,028.04 and 4,764.40 is: 7,142.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,356.40 : 11,028.04 = 4,764.40 : x
  2. Step 2: Convert to fraction form
    7,356.40/11,028.04 = 4,764.40/x
  3. Step 3: Cross multiply
    7,356.40x = 11,028.04 × 4,764.40
  4. Step 4: Simplify right side
    7,356.40x = 52,541,993.78
  5. Step 5: Solve for x
    x = 52,541,993.78/7,356.40
  6. Step 6: Final answer
    x = 7,142.35

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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.