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Finding the Fourth Proportional to 26,321.40, 39,438.90 and 22,433.40

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Solution

The fourth proportional to 26,321.40, 39,438.90 and 22,433.40 is: 33,613.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,321.40 : 39,438.90 = 22,433.40 : x
  2. Step 2: Convert to fraction form
    26,321.40/39,438.90 = 22,433.40/x
  3. Step 3: Cross multiply
    26,321.40x = 39,438.90 × 22,433.40
  4. Step 4: Simplify right side
    26,321.40x = 884,748,619.26
  5. Step 5: Solve for x
    x = 884,748,619.26/26,321.40
  6. Step 6: Final answer
    x = 33,613.28

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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.