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Finding the Fourth Proportional to 14,347.68, 21,507.48 and 7,324.44

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Solution

The fourth proportional to 14,347.68, 21,507.48 and 7,324.44 is: 10,979.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,347.68 : 21,507.48 = 7,324.44 : x
  2. Step 2: Convert to fraction form
    14,347.68/21,507.48 = 7,324.44/x
  3. Step 3: Cross multiply
    14,347.68x = 21,507.48 × 7,324.44
  4. Step 4: Simplify right side
    14,347.68x = 157,530,246.81
  5. Step 5: Solve for x
    x = 157,530,246.81/14,347.68
  6. Step 6: Final answer
    x = 10,979.49

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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.