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Finding the Fourth Proportional to 3,886.51, 5,828.54 and 1,693.03

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Solution

The fourth proportional to 3,886.51, 5,828.54 and 1,693.03 is: 2,539.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,886.51 : 5,828.54 = 1,693.03 : x
  2. Step 2: Convert to fraction form
    3,886.51/5,828.54 = 1,693.03/x
  3. Step 3: Cross multiply
    3,886.51x = 5,828.54 × 1,693.03
  4. Step 4: Simplify right side
    3,886.51x = 9,867,863.93
  5. Step 5: Solve for x
    x = 9,867,863.93/3,886.51
  6. Step 6: Final answer
    x = 2,539.01

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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.