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Finding the Fourth Proportional to 3,597.64, 5,395.26 and 1,405.80

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Solution

The fourth proportional to 3,597.64, 5,395.26 and 1,405.80 is: 2,108.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,597.64 : 5,395.26 = 1,405.80 : x
  2. Step 2: Convert to fraction form
    3,597.64/5,395.26 = 1,405.80/x
  3. Step 3: Cross multiply
    3,597.64x = 5,395.26 × 1,405.80
  4. Step 4: Simplify right side
    3,597.64x = 7,584,656.51
  5. Step 5: Solve for x
    x = 7,584,656.51/3,597.64
  6. Step 6: Final answer
    x = 2,108.23

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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.