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Finding the Fourth Proportional to 18,305.16, 27,457.73 and 4,454.16

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Solution

The fourth proportional to 18,305.16, 27,457.73 and 4,454.16 is: 6,681.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,305.16 : 27,457.73 = 4,454.16 : x
  2. Step 2: Convert to fraction form
    18,305.16/27,457.73 = 4,454.16/x
  3. Step 3: Cross multiply
    18,305.16x = 27,457.73 × 4,454.16
  4. Step 4: Simplify right side
    18,305.16x = 122,301,039.18
  5. Step 5: Solve for x
    x = 122,301,039.18/18,305.16
  6. Step 6: Final answer
    x = 6,681.23

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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.