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Finding the Fourth Proportional to 5,776.53, 8,664.76 and 1,393.98

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Solution

The fourth proportional to 5,776.53, 8,664.76 and 1,393.98 is: 2,090.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,776.53 : 8,664.76 = 1,393.98 : x
  2. Step 2: Convert to fraction form
    5,776.53/8,664.76 = 1,393.98/x
  3. Step 3: Cross multiply
    5,776.53x = 8,664.76 × 1,393.98
  4. Step 4: Simplify right side
    5,776.53x = 12,078,502.14
  5. Step 5: Solve for x
    x = 12,078,502.14/5,776.53
  6. Step 6: Final answer
    x = 2,090.96

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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.