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Finding the Fourth Proportional to 2,239.94, 3,359.99 and 1,070.08

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Solution

The fourth proportional to 2,239.94, 3,359.99 and 1,070.08 is: 1,605.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,239.94 : 3,359.99 = 1,070.08 : x
  2. Step 2: Convert to fraction form
    2,239.94/3,359.99 = 1,070.08/x
  3. Step 3: Cross multiply
    2,239.94x = 3,359.99 × 1,070.08
  4. Step 4: Simplify right side
    2,239.94x = 3,595,435.95
  5. Step 5: Solve for x
    x = 3,595,435.95/2,239.94
  6. Step 6: Final answer
    x = 1,605.15

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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.