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Finding the Fourth Proportional to 3,385.55, 4,672.16 and 1,893.53

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Solution

The fourth proportional to 3,385.55, 4,672.16 and 1,893.53 is: 2,613.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,385.55 : 4,672.16 = 1,893.53 : x
  2. Step 2: Convert to fraction form
    3,385.55/4,672.16 = 1,893.53/x
  3. Step 3: Cross multiply
    3,385.55x = 4,672.16 × 1,893.53
  4. Step 4: Simplify right side
    3,385.55x = 8,846,875.12
  5. Step 5: Solve for x
    x = 8,846,875.12/3,385.55
  6. Step 6: Final answer
    x = 2,613.13

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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.