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Finding the Fourth Proportional to 2,039.63, 3,059.85 and 740.93

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Solution

The fourth proportional to 2,039.63, 3,059.85 and 740.93 is: 1,111.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,039.63 : 3,059.85 = 740.93 : x
  2. Step 2: Convert to fraction form
    2,039.63/3,059.85 = 740.93/x
  3. Step 3: Cross multiply
    2,039.63x = 3,059.85 × 740.93
  4. Step 4: Simplify right side
    2,039.63x = 2,267,134.66
  5. Step 5: Solve for x
    x = 2,267,134.66/2,039.63
  6. Step 6: Final answer
    x = 1,111.54

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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.