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Finding the Fourth Proportional to 7,897.66, 11,842.52 and 2,630.81

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Solution

The fourth proportional to 7,897.66, 11,842.52 and 2,630.81 is: 3,944.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,897.66 : 11,842.52 = 2,630.81 : x
  2. Step 2: Convert to fraction form
    7,897.66/11,842.52 = 2,630.81/x
  3. Step 3: Cross multiply
    7,897.66x = 11,842.52 × 2,630.81
  4. Step 4: Simplify right side
    7,897.66x = 31,155,420.04
  5. Step 5: Solve for x
    x = 31,155,420.04/7,897.66
  6. Step 6: Final answer
    x = 3,944.89

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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.