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Finding the Fourth Proportional to 3,653.22, 5,486.01 and 2,388.87

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Solution

The fourth proportional to 3,653.22, 5,486.01 and 2,388.87 is: 3,587.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,653.22 : 5,486.01 = 2,388.87 : x
  2. Step 2: Convert to fraction form
    3,653.22/5,486.01 = 2,388.87/x
  3. Step 3: Cross multiply
    3,653.22x = 5,486.01 × 2,388.87
  4. Step 4: Simplify right side
    3,653.22x = 13,105,364.71
  5. Step 5: Solve for x
    x = 13,105,364.71/3,653.22
  6. Step 6: Final answer
    x = 3,587.35

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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.