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Finding the Fourth Proportional to 3,470.22, 4,788.96 and 1,898.34

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Solution

The fourth proportional to 3,470.22, 4,788.96 and 1,898.34 is: 2,619.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,470.22 : 4,788.96 = 1,898.34 : x
  2. Step 2: Convert to fraction form
    3,470.22/4,788.96 = 1,898.34/x
  3. Step 3: Cross multiply
    3,470.22x = 4,788.96 × 1,898.34
  4. Step 4: Simplify right side
    3,470.22x = 9,091,074.33
  5. Step 5: Solve for x
    x = 9,091,074.33/3,470.22
  6. Step 6: Final answer
    x = 2,619.74

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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.