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Finding the Fourth Proportional to 12,080.60, 18,126.08 and 6,241.32

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Solution

The fourth proportional to 12,080.60, 18,126.08 and 6,241.32 is: 9,364.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,080.60 : 18,126.08 = 6,241.32 : x
  2. Step 2: Convert to fraction form
    12,080.60/18,126.08 = 6,241.32/x
  3. Step 3: Cross multiply
    12,080.60x = 18,126.08 × 6,241.32
  4. Step 4: Simplify right side
    12,080.60x = 113,130,665.63
  5. Step 5: Solve for x
    x = 113,130,665.63/12,080.60
  6. Step 6: Final answer
    x = 9,364.66

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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.