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Finding the Fourth Proportional to 17,643.32, 26,464.98 and 6,397.70

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Solution

The fourth proportional to 17,643.32, 26,464.98 and 6,397.70 is: 9,596.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,643.32 : 26,464.98 = 6,397.70 : x
  2. Step 2: Convert to fraction form
    17,643.32/26,464.98 = 6,397.70/x
  3. Step 3: Cross multiply
    17,643.32x = 26,464.98 × 6,397.70
  4. Step 4: Simplify right side
    17,643.32x = 169,315,002.55
  5. Step 5: Solve for x
    x = 169,315,002.55/17,643.32
  6. Step 6: Final answer
    x = 9,596.55

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Similar ratio
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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.