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Finding the Fourth Proportional to 18,607.13, 27,910.69 and 4,756.13

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Solution

The fourth proportional to 18,607.13, 27,910.69 and 4,756.13 is: 7,134.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,607.13 : 27,910.69 = 4,756.13 : x
  2. Step 2: Convert to fraction form
    18,607.13/27,910.69 = 4,756.13/x
  3. Step 3: Cross multiply
    18,607.13x = 27,910.69 × 4,756.13
  4. Step 4: Simplify right side
    18,607.13x = 132,746,870.03
  5. Step 5: Solve for x
    x = 132,746,870.03/18,607.13
  6. Step 6: Final answer
    x = 7,134.19

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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.