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Finding the Fourth Proportional to 8,994.69, 13,491.99 and 2,420.31

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Solution

The fourth proportional to 8,994.69, 13,491.99 and 2,420.31 is: 3,630.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,994.69 : 13,491.99 = 2,420.31 : x
  2. Step 2: Convert to fraction form
    8,994.69/13,491.99 = 2,420.31/x
  3. Step 3: Cross multiply
    8,994.69x = 13,491.99 × 2,420.31
  4. Step 4: Simplify right side
    8,994.69x = 32,654,798.32
  5. Step 5: Solve for x
    x = 32,654,798.32/8,994.69
  6. Step 6: Final answer
    x = 3,630.45

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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.