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Finding the Fourth Proportional to 13,597.85, 18,764.74 and 7,630.97

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Solution

The fourth proportional to 13,597.85, 18,764.74 and 7,630.97 is: 10,530.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,597.85 : 18,764.74 = 7,630.97 : x
  2. Step 2: Convert to fraction form
    13,597.85/18,764.74 = 7,630.97/x
  3. Step 3: Cross multiply
    13,597.85x = 18,764.74 × 7,630.97
  4. Step 4: Simplify right side
    13,597.85x = 143,193,168.00
  5. Step 5: Solve for x
    x = 143,193,168.00/13,597.85
  6. Step 6: Final answer
    x = 10,530.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.