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Finding the Fourth Proportional to 11,358, 17,034.16 and 3,961.36

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Solution

The fourth proportional to 11,358, 17,034.16 and 3,961.36 is: 5,941.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,358 : 17,034.16 = 3,961.36 : x
  2. Step 2: Convert to fraction form
    11,358/17,034.16 = 3,961.36/x
  3. Step 3: Cross multiply
    11,358x = 17,034.16 × 3,961.36
  4. Step 4: Simplify right side
    11,358x = 67,478,440.06
  5. Step 5: Solve for x
    x = 67,478,440.06/11,358
  6. Step 6: Final answer
    x = 5,941.05

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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.