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Finding the Fourth Proportional to 14,015.18, 20,994.60 and 6,973.94

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Solution

The fourth proportional to 14,015.18, 20,994.60 and 6,973.94 is: 10,446.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,015.18 : 20,994.60 = 6,973.94 : x
  2. Step 2: Convert to fraction form
    14,015.18/20,994.60 = 6,973.94/x
  3. Step 3: Cross multiply
    14,015.18x = 20,994.60 × 6,973.94
  4. Step 4: Simplify right side
    14,015.18x = 146,415,080.72
  5. Step 5: Solve for x
    x = 146,415,080.72/14,015.18
  6. Step 6: Final answer
    x = 10,446.89

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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.