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Finding the Fourth Proportional to 43,920.99, 65,893.95 and 17,644.20

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Solution

The fourth proportional to 43,920.99, 65,893.95 and 17,644.20 is: 26,471.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,920.99 : 65,893.95 = 17,644.20 : x
  2. Step 2: Convert to fraction form
    43,920.99/65,893.95 = 17,644.20/x
  3. Step 3: Cross multiply
    43,920.99x = 65,893.95 × 17,644.20
  4. Step 4: Simplify right side
    43,920.99x = 1,162,646,032.59
  5. Step 5: Solve for x
    x = 1,162,646,032.59/43,920.99
  6. Step 6: Final answer
    x = 26,471.31

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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.