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Finding the Fourth Proportional to 3,007.89, 4,512.51 and 1,364.90

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Solution

The fourth proportional to 3,007.89, 4,512.51 and 1,364.90 is: 2,047.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,007.89 : 4,512.51 = 1,364.90 : x
  2. Step 2: Convert to fraction form
    3,007.89/4,512.51 = 1,364.90/x
  3. Step 3: Cross multiply
    3,007.89x = 4,512.51 × 1,364.90
  4. Step 4: Simplify right side
    3,007.89x = 6,159,136.18
  5. Step 5: Solve for x
    x = 6,159,136.18/3,007.89
  6. Step 6: Final answer
    x = 2,047.66

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.