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Finding the Fourth Proportional to 11,359.17, 17,145.45 and 11,359.17

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Solution

The fourth proportional to 11,359.17, 17,145.45 and 11,359.17 is: 17,145.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,359.17 : 17,145.45 = 11,359.17 : x
  2. Step 2: Convert to fraction form
    11,359.17/17,145.45 = 11,359.17/x
  3. Step 3: Cross multiply
    11,359.17x = 17,145.45 × 11,359.17
  4. Step 4: Simplify right side
    11,359.17x = 194,758,081.28
  5. Step 5: Solve for x
    x = 194,758,081.28/11,359.17
  6. Step 6: Final answer
    x = 17,145.45

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.