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Finding the Fourth Proportional to 12,503.79, 18,747.76 and 6,262.11

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Solution

The fourth proportional to 12,503.79, 18,747.76 and 6,262.11 is: 9,389.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,503.79 : 18,747.76 = 6,262.11 : x
  2. Step 2: Convert to fraction form
    12,503.79/18,747.76 = 6,262.11/x
  3. Step 3: Cross multiply
    12,503.79x = 18,747.76 × 6,262.11
  4. Step 4: Simplify right side
    12,503.79x = 117,400,410.32
  5. Step 5: Solve for x
    x = 117,400,410.32/12,503.79
  6. Step 6: Final answer
    x = 9,389.19

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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.