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Finding the Fourth Proportional to 11,810.00, 17,715.03 and 4,790.13

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Solution

The fourth proportional to 11,810.00, 17,715.03 and 4,790.13 is: 7,185.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,810.00 : 17,715.03 = 4,790.13 : x
  2. Step 2: Convert to fraction form
    11,810.00/17,715.03 = 4,790.13/x
  3. Step 3: Cross multiply
    11,810.00x = 17,715.03 × 4,790.13
  4. Step 4: Simplify right side
    11,810.00x = 84,857,296.65
  5. Step 5: Solve for x
    x = 84,857,296.65/11,810.00
  6. Step 6: Final answer
    x = 7,185.21

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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.