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Finding the Fourth Proportional to 17,628.64, 26,443.64 and 4,481.32

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Solution

The fourth proportional to 17,628.64, 26,443.64 and 4,481.32 is: 6,722.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,628.64 : 26,443.64 = 4,481.32 : x
  2. Step 2: Convert to fraction form
    17,628.64/26,443.64 = 4,481.32/x
  3. Step 3: Cross multiply
    17,628.64x = 26,443.64 × 4,481.32
  4. Step 4: Simplify right side
    17,628.64x = 118,502,412.80
  5. Step 5: Solve for x
    x = 118,502,412.80/17,628.64
  6. Step 6: Final answer
    x = 6,722.15

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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.