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Finding the Fourth Proportional to 18,308.56, 27,462.84 and 4,457.44

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Solution

The fourth proportional to 18,308.56, 27,462.84 and 4,457.44 is: 6,686.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,308.56 : 27,462.84 = 4,457.44 : x
  2. Step 2: Convert to fraction form
    18,308.56/27,462.84 = 4,457.44/x
  3. Step 3: Cross multiply
    18,308.56x = 27,462.84 × 4,457.44
  4. Step 4: Simplify right side
    18,308.56x = 122,413,961.53
  5. Step 5: Solve for x
    x = 122,413,961.53/18,308.56
  6. Step 6: Final answer
    x = 6,686.16

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1.5x scale

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.