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Finding the Fourth Proportional to 26,946.60, 40,419.90 and 19,602.60

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Solution

The fourth proportional to 26,946.60, 40,419.90 and 19,602.60 is: 29,403.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,946.60 : 40,419.90 = 19,602.60 : x
  2. Step 2: Convert to fraction form
    26,946.60/40,419.90 = 19,602.60/x
  3. Step 3: Cross multiply
    26,946.60x = 40,419.90 × 19,602.60
  4. Step 4: Simplify right side
    26,946.60x = 792,335,131.74
  5. Step 5: Solve for x
    x = 792,335,131.74/26,946.60
  6. Step 6: Final answer
    x = 29,403.90

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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.