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Finding the Fourth Proportional to 4,903.85, 6,766.71 and 2,779.62

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Solution

The fourth proportional to 4,903.85, 6,766.71 and 2,779.62 is: 3,835.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,903.85 : 6,766.71 = 2,779.62 : x
  2. Step 2: Convert to fraction form
    4,903.85/6,766.71 = 2,779.62/x
  3. Step 3: Cross multiply
    4,903.85x = 6,766.71 × 2,779.62
  4. Step 4: Simplify right side
    4,903.85x = 18,808,882.45
  5. Step 5: Solve for x
    x = 18,808,882.45/4,903.85
  6. Step 6: Final answer
    x = 3,835.54

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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.