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Finding the Fourth Proportional to 26,647.60, 39,971.40 and 22,419.40

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Solution

The fourth proportional to 26,647.60, 39,971.40 and 22,419.40 is: 33,629.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,647.60 : 39,971.40 = 22,419.40 : x
  2. Step 2: Convert to fraction form
    26,647.60/39,971.40 = 22,419.40/x
  3. Step 3: Cross multiply
    26,647.60x = 39,971.40 × 22,419.40
  4. Step 4: Simplify right side
    26,647.60x = 896,134,805.16
  5. Step 5: Solve for x
    x = 896,134,805.16/26,647.60
  6. Step 6: Final answer
    x = 33,629.10

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Similar ratio
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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.