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Finding the Fourth Proportional to 8,530.39, 11,770.38 and 4,753.46

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Solution

The fourth proportional to 8,530.39, 11,770.38 and 4,753.46 is: 6,558.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,530.39 : 11,770.38 = 4,753.46 : x
  2. Step 2: Convert to fraction form
    8,530.39/11,770.38 = 4,753.46/x
  3. Step 3: Cross multiply
    8,530.39x = 11,770.38 × 4,753.46
  4. Step 4: Simplify right side
    8,530.39x = 55,950,092.48
  5. Step 5: Solve for x
    x = 55,950,092.48/8,530.39
  6. Step 6: Final answer
    x = 6,558.91

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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.