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Finding the Fourth Proportional to 27,328.32, 40,992.53 and 7,606.87

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Solution

The fourth proportional to 27,328.32, 40,992.53 and 7,606.87 is: 11,410.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,328.32 : 40,992.53 = 7,606.87 : x
  2. Step 2: Convert to fraction form
    27,328.32/40,992.53 = 7,606.87/x
  3. Step 3: Cross multiply
    27,328.32x = 40,992.53 × 7,606.87
  4. Step 4: Simplify right side
    27,328.32x = 311,824,706.17
  5. Step 5: Solve for x
    x = 311,824,706.17/27,328.32
  6. Step 6: Final answer
    x = 11,410.31

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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.