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Finding the Fourth Proportional to 7,772.42, 11,658.31 and 3,092.24

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Solution

The fourth proportional to 7,772.42, 11,658.31 and 3,092.24 is: 4,638.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,772.42 : 11,658.31 = 3,092.24 : x
  2. Step 2: Convert to fraction form
    7,772.42/11,658.31 = 3,092.24/x
  3. Step 3: Cross multiply
    7,772.42x = 11,658.31 × 3,092.24
  4. Step 4: Simplify right side
    7,772.42x = 36,050,292.51
  5. Step 5: Solve for x
    x = 36,050,292.51/7,772.42
  6. Step 6: Final answer
    x = 4,638.23

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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.