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Finding the Fourth Proportional to 6,886.77, 9,503.85 and 3,742.97

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Solution

The fourth proportional to 6,886.77, 9,503.85 and 3,742.97 is: 5,165.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,886.77 : 9,503.85 = 3,742.97 : x
  2. Step 2: Convert to fraction form
    6,886.77/9,503.85 = 3,742.97/x
  3. Step 3: Cross multiply
    6,886.77x = 9,503.85 × 3,742.97
  4. Step 4: Simplify right side
    6,886.77x = 35,572,577.92
  5. Step 5: Solve for x
    x = 35,572,577.92/6,886.77
  6. Step 6: Final answer
    x = 5,165.35

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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.