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Finding the Fourth Proportional to 8,886.75, 13,328.99 and 4,144.61

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Solution

The fourth proportional to 8,886.75, 13,328.99 and 4,144.61 is: 6,216.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,886.75 : 13,328.99 = 4,144.61 : x
  2. Step 2: Convert to fraction form
    8,886.75/13,328.99 = 4,144.61/x
  3. Step 3: Cross multiply
    8,886.75x = 13,328.99 × 4,144.61
  4. Step 4: Simplify right side
    8,886.75x = 55,243,465.24
  5. Step 5: Solve for x
    x = 55,243,465.24/8,886.75
  6. Step 6: Final answer
    x = 6,216.39

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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.