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Finding the Fourth Proportional to 27,536.56, 41,304.80 and 7,815.28

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Solution

The fourth proportional to 27,536.56, 41,304.80 and 7,815.28 is: 11,722.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,536.56 : 41,304.80 = 7,815.28 : x
  2. Step 2: Convert to fraction form
    27,536.56/41,304.80 = 7,815.28/x
  3. Step 3: Cross multiply
    27,536.56x = 41,304.80 × 7,815.28
  4. Step 4: Simplify right side
    27,536.56x = 322,808,577.34
  5. Step 5: Solve for x
    x = 322,808,577.34/27,536.56
  6. Step 6: Final answer
    x = 11,722.91

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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.