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Finding the Fourth Proportional to 11,295.16, 16,919.65 and 5,282.63

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Solution

The fourth proportional to 11,295.16, 16,919.65 and 5,282.63 is: 7,913.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,295.16 : 16,919.65 = 5,282.63 : x
  2. Step 2: Convert to fraction form
    11,295.16/16,919.65 = 5,282.63/x
  3. Step 3: Cross multiply
    11,295.16x = 16,919.65 × 5,282.63
  4. Step 4: Simplify right side
    11,295.16x = 89,380,236.13
  5. Step 5: Solve for x
    x = 89,380,236.13/11,295.16
  6. Step 6: Final answer
    x = 7,913.15

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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.