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Finding the Fourth Proportional to 2,016.70, 3,024.29 and 783.95

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Solution

The fourth proportional to 2,016.70, 3,024.29 and 783.95 is: 1,175.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,016.70 : 3,024.29 = 783.95 : x
  2. Step 2: Convert to fraction form
    2,016.70/3,024.29 = 783.95/x
  3. Step 3: Cross multiply
    2,016.70x = 3,024.29 × 783.95
  4. Step 4: Simplify right side
    2,016.70x = 2,370,895.79
  5. Step 5: Solve for x
    x = 2,370,895.79/2,016.70
  6. Step 6: Final answer
    x = 1,175.63

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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.