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Finding the Fourth Proportional to 2,957.77, 4,436.03 and 1,109.03

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Solution

The fourth proportional to 2,957.77, 4,436.03 and 1,109.03 is: 1,663.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,957.77 : 4,436.03 = 1,109.03 : x
  2. Step 2: Convert to fraction form
    2,957.77/4,436.03 = 1,109.03/x
  3. Step 3: Cross multiply
    2,957.77x = 4,436.03 × 1,109.03
  4. Step 4: Simplify right side
    2,957.77x = 4,919,673.28
  5. Step 5: Solve for x
    x = 4,919,673.28/2,957.77
  6. Step 6: Final answer
    x = 1,663.30

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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.