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Finding the Fourth Proportional to 8,676.74, 13,014.87 and 2,436.80

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Solution

The fourth proportional to 8,676.74, 13,014.87 and 2,436.80 is: 3,655.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,676.74 : 13,014.87 = 2,436.80 : x
  2. Step 2: Convert to fraction form
    8,676.74/13,014.87 = 2,436.80/x
  3. Step 3: Cross multiply
    8,676.74x = 13,014.87 × 2,436.80
  4. Step 4: Simplify right side
    8,676.74x = 31,714,570.14
  5. Step 5: Solve for x
    x = 31,714,570.14/8,676.74
  6. Step 6: Final answer
    x = 3,655.13

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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.