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Finding the Fourth Proportional to 3,395.08, 5,090.80 and 1,054.08

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Solution

The fourth proportional to 3,395.08, 5,090.80 and 1,054.08 is: 1,580.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,395.08 : 5,090.80 = 1,054.08 : x
  2. Step 2: Convert to fraction form
    3,395.08/5,090.80 = 1,054.08/x
  3. Step 3: Cross multiply
    3,395.08x = 5,090.80 × 1,054.08
  4. Step 4: Simplify right side
    3,395.08x = 5,366,109.81
  5. Step 5: Solve for x
    x = 5,366,109.81/3,395.08
  6. Step 6: Final answer
    x = 1,580.55

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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.