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Finding the Fourth Proportional to 18,457.47, 27,672.84 and 7,203.27

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Solution

The fourth proportional to 18,457.47, 27,672.84 and 7,203.27 is: 10,799.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,457.47 : 27,672.84 = 7,203.27 : x
  2. Step 2: Convert to fraction form
    18,457.47/27,672.84 = 7,203.27/x
  3. Step 3: Cross multiply
    18,457.47x = 27,672.84 × 7,203.27
  4. Step 4: Simplify right side
    18,457.47x = 199,334,938.19
  5. Step 5: Solve for x
    x = 199,334,938.19/18,457.47
  6. Step 6: Final answer
    x = 10,799.69

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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.