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Finding the Fourth Proportional to 26,390.40, 39,542.40 and 22,502.40

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Solution

The fourth proportional to 26,390.40, 39,542.40 and 22,502.40 is: 33,716.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,390.40 : 39,542.40 = 22,502.40 : x
  2. Step 2: Convert to fraction form
    26,390.40/39,542.40 = 22,502.40/x
  3. Step 3: Cross multiply
    26,390.40x = 39,542.40 × 22,502.40
  4. Step 4: Simplify right side
    26,390.40x = 889,798,901.76
  5. Step 5: Solve for x
    x = 889,798,901.76/26,390.40
  6. Step 6: Final answer
    x = 33,716.76

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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.