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Finding the Fourth Proportional to 4,645.98, 6,964.88 and 1,722.24

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Solution

The fourth proportional to 4,645.98, 6,964.88 and 1,722.24 is: 2,581.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,645.98 : 6,964.88 = 1,722.24 : x
  2. Step 2: Convert to fraction form
    4,645.98/6,964.88 = 1,722.24/x
  3. Step 3: Cross multiply
    4,645.98x = 6,964.88 × 1,722.24
  4. Step 4: Simplify right side
    4,645.98x = 11,995,186.32
  5. Step 5: Solve for x
    x = 11,995,186.32/4,645.98
  6. Step 6: Final answer
    x = 2,581.84

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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.