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Finding the Fourth Proportional to 18,455.65, 27,670.06 and 7,359.01

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Solution

The fourth proportional to 18,455.65, 27,670.06 and 7,359.01 is: 11,033.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,455.65 : 27,670.06 = 7,359.01 : x
  2. Step 2: Convert to fraction form
    18,455.65/27,670.06 = 7,359.01/x
  3. Step 3: Cross multiply
    18,455.65x = 27,670.06 × 7,359.01
  4. Step 4: Simplify right side
    18,455.65x = 203,624,248.24
  5. Step 5: Solve for x
    x = 203,624,248.24/18,455.65
  6. Step 6: Final answer
    x = 11,033.17

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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.