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Finding the Fourth Proportional to 43,324.99, 64,989.79 and 13,745.14

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Solution

The fourth proportional to 43,324.99, 64,989.79 and 13,745.14 is: 20,618.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,324.99 : 64,989.79 = 13,745.14 : x
  2. Step 2: Convert to fraction form
    43,324.99/64,989.79 = 13,745.14/x
  3. Step 3: Cross multiply
    43,324.99x = 64,989.79 × 13,745.14
  4. Step 4: Simplify right side
    43,324.99x = 893,293,565.28
  5. Step 5: Solve for x
    x = 893,293,565.28/43,324.99
  6. Step 6: Final answer
    x = 20,618.44

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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.