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Finding the Fourth Proportional to 35,144.66, 48,494.85 and 20,994.50

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Solution

The fourth proportional to 35,144.66, 48,494.85 and 20,994.50 is: 28,969.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,144.66 : 48,494.85 = 20,994.50 : x
  2. Step 2: Convert to fraction form
    35,144.66/48,494.85 = 20,994.50/x
  3. Step 3: Cross multiply
    35,144.66x = 48,494.85 × 20,994.50
  4. Step 4: Simplify right side
    35,144.66x = 1,018,125,128.33
  5. Step 5: Solve for x
    x = 1,018,125,128.33/35,144.66
  6. Step 6: Final answer
    x = 28,969.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.