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Finding the Fourth Proportional to 8,749.52, 12,074.16 and 4,770.66

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Solution

The fourth proportional to 8,749.52, 12,074.16 and 4,770.66 is: 6,583.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,749.52 : 12,074.16 = 4,770.66 : x
  2. Step 2: Convert to fraction form
    8,749.52/12,074.16 = 4,770.66/x
  3. Step 3: Cross multiply
    8,749.52x = 12,074.16 × 4,770.66
  4. Step 4: Simplify right side
    8,749.52x = 57,601,712.15
  5. Step 5: Solve for x
    x = 57,601,712.15/8,749.52
  6. Step 6: Final answer
    x = 6,583.41

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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.