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Finding the Fourth Proportional to 27,143.17, 40,700.87 and 11,343.89

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Solution

The fourth proportional to 27,143.17, 40,700.87 and 11,343.89 is: 17,010.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,143.17 : 40,700.87 = 11,343.89 : x
  2. Step 2: Convert to fraction form
    27,143.17/40,700.87 = 11,343.89/x
  3. Step 3: Cross multiply
    27,143.17x = 40,700.87 × 11,343.89
  4. Step 4: Simplify right side
    27,143.17x = 461,706,135.46
  5. Step 5: Solve for x
    x = 461,706,135.46/27,143.17
  6. Step 6: Final answer
    x = 17,010.03

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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.