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Finding the Fourth Proportional to 4,885.83, 6,742.44 and 2,647.67

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Solution

The fourth proportional to 4,885.83, 6,742.44 and 2,647.67 is: 3,653.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,885.83 : 6,742.44 = 2,647.67 : x
  2. Step 2: Convert to fraction form
    4,885.83/6,742.44 = 2,647.67/x
  3. Step 3: Cross multiply
    4,885.83x = 6,742.44 × 2,647.67
  4. Step 4: Simplify right side
    4,885.83x = 17,851,722.40
  5. Step 5: Solve for x
    x = 17,851,722.40/4,885.83
  6. Step 6: Final answer
    x = 3,653.77

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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.