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Finding the Fourth Proportional to 8,010.74, 12,015.18 and 3,076.91

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Solution

The fourth proportional to 8,010.74, 12,015.18 and 3,076.91 is: 4,615.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,010.74 : 12,015.18 = 3,076.91 : x
  2. Step 2: Convert to fraction form
    8,010.74/12,015.18 = 3,076.91/x
  3. Step 3: Cross multiply
    8,010.74x = 12,015.18 × 3,076.91
  4. Step 4: Simplify right side
    8,010.74x = 36,969,567.42
  5. Step 5: Solve for x
    x = 36,969,567.42/8,010.74
  6. Step 6: Final answer
    x = 4,615.00

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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.