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Finding the Fourth Proportional to 3,457.90, 4,772.56 and 3,246.89

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Solution

The fourth proportional to 3,457.90, 4,772.56 and 3,246.89 is: 4,481.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,457.90 : 4,772.56 = 3,246.89 : x
  2. Step 2: Convert to fraction form
    3,457.90/4,772.56 = 3,246.89/x
  3. Step 3: Cross multiply
    3,457.90x = 4,772.56 × 3,246.89
  4. Step 4: Simplify right side
    3,457.90x = 15,495,977.34
  5. Step 5: Solve for x
    x = 15,495,977.34/3,457.90
  6. Step 6: Final answer
    x = 4,481.33

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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.