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Finding the Fourth Proportional to 26,006.40, 38,966.40 and 22,291.20

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Solution

The fourth proportional to 26,006.40, 38,966.40 and 22,291.20 is: 33,399.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,006.40 : 38,966.40 = 22,291.20 : x
  2. Step 2: Convert to fraction form
    26,006.40/38,966.40 = 22,291.20/x
  3. Step 3: Cross multiply
    26,006.40x = 38,966.40 × 22,291.20
  4. Step 4: Simplify right side
    26,006.40x = 868,607,815.68
  5. Step 5: Solve for x
    x = 868,607,815.68/26,006.40
  6. Step 6: Final answer
    x = 33,399.77

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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.