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Finding the Fourth Proportional to 5,174.44, 7,762.16 and 1,663.56

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Solution

The fourth proportional to 5,174.44, 7,762.16 and 1,663.56 is: 2,495.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,174.44 : 7,762.16 = 1,663.56 : x
  2. Step 2: Convert to fraction form
    5,174.44/7,762.16 = 1,663.56/x
  3. Step 3: Cross multiply
    5,174.44x = 7,762.16 × 1,663.56
  4. Step 4: Simplify right side
    5,174.44x = 12,912,818.89
  5. Step 5: Solve for x
    x = 12,912,818.89/5,174.44
  6. Step 6: Final answer
    x = 2,495.50

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1.5x scale

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.