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Finding the Fourth Proportional to 3,487.07, 4,812.19 and 1,893.73

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Solution

The fourth proportional to 3,487.07, 4,812.19 and 1,893.73 is: 2,613.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,487.07 : 4,812.19 = 1,893.73 : x
  2. Step 2: Convert to fraction form
    3,487.07/4,812.19 = 1,893.73/x
  3. Step 3: Cross multiply
    3,487.07x = 4,812.19 × 1,893.73
  4. Step 4: Simplify right side
    3,487.07x = 9,112,955.04
  5. Step 5: Solve for x
    x = 9,112,955.04/3,487.07
  6. Step 6: Final answer
    x = 2,613.36

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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.