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Finding the Fourth Proportional to 7,328.88, 10,977.88 and 5,761.43

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Solution

The fourth proportional to 7,328.88, 10,977.88 and 5,761.43 is: 8,630.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,328.88 : 10,977.88 = 5,761.43 : x
  2. Step 2: Convert to fraction form
    7,328.88/10,977.88 = 5,761.43/x
  3. Step 3: Cross multiply
    7,328.88x = 10,977.88 × 5,761.43
  4. Step 4: Simplify right side
    7,328.88x = 63,248,269.85
  5. Step 5: Solve for x
    x = 63,248,269.85/7,328.88
  6. Step 6: Final answer
    x = 8,630.00

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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.