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Finding the Fourth Proportional to 2,036.07, 3,054.11 and 787.05

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Solution

The fourth proportional to 2,036.07, 3,054.11 and 787.05 is: 1,180.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,036.07 : 3,054.11 = 787.05 : x
  2. Step 2: Convert to fraction form
    2,036.07/3,054.11 = 787.05/x
  3. Step 3: Cross multiply
    2,036.07x = 3,054.11 × 787.05
  4. Step 4: Simplify right side
    2,036.07x = 2,403,733.34
  5. Step 5: Solve for x
    x = 2,403,733.34/2,036.07
  6. Step 6: Final answer
    x = 1,180.58

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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.