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Finding the Fourth Proportional to 26,954.60, 40,431.90 and 13,802.60

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Solution

The fourth proportional to 26,954.60, 40,431.90 and 13,802.60 is: 20,703.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,954.60 : 40,431.90 = 13,802.60 : x
  2. Step 2: Convert to fraction form
    26,954.60/40,431.90 = 13,802.60/x
  3. Step 3: Cross multiply
    26,954.60x = 40,431.90 × 13,802.60
  4. Step 4: Simplify right side
    26,954.60x = 558,065,342.94
  5. Step 5: Solve for x
    x = 558,065,342.94/26,954.60
  6. Step 6: Final answer
    x = 20,703.90

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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.