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Finding the Fourth Proportional to 5,590.62, 7,718.44 and 3,703.82

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Solution

The fourth proportional to 5,590.62, 7,718.44 and 3,703.82 is: 5,113.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,590.62 : 7,718.44 = 3,703.82 : x
  2. Step 2: Convert to fraction form
    5,590.62/7,718.44 = 3,703.82/x
  3. Step 3: Cross multiply
    5,590.62x = 7,718.44 × 3,703.82
  4. Step 4: Simplify right side
    5,590.62x = 28,587,722.48
  5. Step 5: Solve for x
    x = 28,587,722.48/5,590.62
  6. Step 6: Final answer
    x = 5,113.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.