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Finding the Fourth Proportional to 2,042.70, 3,064.15 and 1,070.70

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Solution

The fourth proportional to 2,042.70, 3,064.15 and 1,070.70 is: 1,606.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,042.70 : 3,064.15 = 1,070.70 : x
  2. Step 2: Convert to fraction form
    2,042.70/3,064.15 = 1,070.70/x
  3. Step 3: Cross multiply
    2,042.70x = 3,064.15 × 1,070.70
  4. Step 4: Simplify right side
    2,042.70x = 3,280,785.41
  5. Step 5: Solve for x
    x = 3,280,785.41/2,042.70
  6. Step 6: Final answer
    x = 1,606.10

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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.