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Finding the Fourth Proportional to 11,240.10, 16,860.15 and 4,662.90

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Solution

The fourth proportional to 11,240.10, 16,860.15 and 4,662.90 is: 6,994.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,240.10 : 16,860.15 = 4,662.90 : x
  2. Step 2: Convert to fraction form
    11,240.10/16,860.15 = 4,662.90/x
  3. Step 3: Cross multiply
    11,240.10x = 16,860.15 × 4,662.90
  4. Step 4: Simplify right side
    11,240.10x = 78,617,193.44
  5. Step 5: Solve for x
    x = 78,617,193.44/11,240.10
  6. Step 6: Final answer
    x = 6,994.35

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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.