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Finding the Fourth Proportional to 40,994.70, 61,489.62 and 14,338.84

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Solution

The fourth proportional to 40,994.70, 61,489.62 and 14,338.84 is: 21,507.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,994.70 : 61,489.62 = 14,338.84 : x
  2. Step 2: Convert to fraction form
    40,994.70/61,489.62 = 14,338.84/x
  3. Step 3: Cross multiply
    40,994.70x = 61,489.62 × 14,338.84
  4. Step 4: Simplify right side
    40,994.70x = 881,689,822.84
  5. Step 5: Solve for x
    x = 881,689,822.84/40,994.70
  6. Step 6: Final answer
    x = 21,507.41

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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.