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Finding the Fourth Proportional to 6,886.48, 9,503.34 and 3,742.66

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Solution

The fourth proportional to 6,886.48, 9,503.34 and 3,742.66 is: 5,164.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,886.48 : 9,503.34 = 3,742.66 : x
  2. Step 2: Convert to fraction form
    6,886.48/9,503.34 = 3,742.66/x
  3. Step 3: Cross multiply
    6,886.48x = 9,503.34 × 3,742.66
  4. Step 4: Simplify right side
    6,886.48x = 35,567,770.48
  5. Step 5: Solve for x
    x = 35,567,770.48/6,886.48
  6. Step 6: Final answer
    x = 5,164.87

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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.