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Finding the Fourth Proportional to 3,886.71, 5,832.56 and 2,848.56

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Solution

The fourth proportional to 3,886.71, 5,832.56 and 2,848.56 is: 4,274.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,886.71 : 5,832.56 = 2,848.56 : x
  2. Step 2: Convert to fraction form
    3,886.71/5,832.56 = 2,848.56/x
  3. Step 3: Cross multiply
    3,886.71x = 5,832.56 × 2,848.56
  4. Step 4: Simplify right side
    3,886.71x = 16,614,397.11
  5. Step 5: Solve for x
    x = 16,614,397.11/3,886.71
  6. Step 6: Final answer
    x = 4,274.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.