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Finding the Fourth Proportional to 3,703.71, 5,555.53 and 1,071.28

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Solution

The fourth proportional to 3,703.71, 5,555.53 and 1,071.28 is: 1,606.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,703.71 : 5,555.53 = 1,071.28 : x
  2. Step 2: Convert to fraction form
    3,703.71/5,555.53 = 1,071.28/x
  3. Step 3: Cross multiply
    3,703.71x = 5,555.53 × 1,071.28
  4. Step 4: Simplify right side
    3,703.71x = 5,951,528.18
  5. Step 5: Solve for x
    x = 5,951,528.18/3,703.71
  6. Step 6: Final answer
    x = 1,606.91

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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.