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Finding the Fourth Proportional to 13,110.17, 19,668.11 and 4,790.17

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Solution

The fourth proportional to 13,110.17, 19,668.11 and 4,790.17 is: 7,186.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,110.17 : 19,668.11 = 4,790.17 : x
  2. Step 2: Convert to fraction form
    13,110.17/19,668.11 = 4,790.17/x
  3. Step 3: Cross multiply
    13,110.17x = 19,668.11 × 4,790.17
  4. Step 4: Simplify right side
    13,110.17x = 94,213,627.99
  5. Step 5: Solve for x
    x = 94,213,627.99/13,110.17
  6. Step 6: Final answer
    x = 7,186.30

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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.