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Finding the Fourth Proportional to 8,994.81, 13,491.17 and 2,420.48

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Solution

The fourth proportional to 8,994.81, 13,491.17 and 2,420.48 is: 3,630.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,994.81 : 13,491.17 = 2,420.48 : x
  2. Step 2: Convert to fraction form
    8,994.81/13,491.17 = 2,420.48/x
  3. Step 3: Cross multiply
    8,994.81x = 13,491.17 × 2,420.48
  4. Step 4: Simplify right side
    8,994.81x = 32,655,137.86
  5. Step 5: Solve for x
    x = 32,655,137.86/8,994.81
  6. Step 6: Final answer
    x = 3,630.44

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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.