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Finding the Fourth Proportional to 7,603.85, 11,402.86 and 3,654.01

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Solution

The fourth proportional to 7,603.85, 11,402.86 and 3,654.01 is: 5,479.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,603.85 : 11,402.86 = 3,654.01 : x
  2. Step 2: Convert to fraction form
    7,603.85/11,402.86 = 3,654.01/x
  3. Step 3: Cross multiply
    7,603.85x = 11,402.86 × 3,654.01
  4. Step 4: Simplify right side
    7,603.85x = 41,666,164.47
  5. Step 5: Solve for x
    x = 41,666,164.47/7,603.85
  6. Step 6: Final answer
    x = 5,479.61

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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.