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Finding the Fourth Proportional to 3,577.71, 5,368.10 and 1,730.21

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Solution

The fourth proportional to 3,577.71, 5,368.10 and 1,730.21 is: 2,596.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,577.71 : 5,368.10 = 1,730.21 : x
  2. Step 2: Convert to fraction form
    3,577.71/5,368.10 = 1,730.21/x
  3. Step 3: Cross multiply
    3,577.71x = 5,368.10 × 1,730.21
  4. Step 4: Simplify right side
    3,577.71x = 9,287,917.79
  5. Step 5: Solve for x
    x = 9,287,917.79/3,577.71
  6. Step 6: Final answer
    x = 2,596.05

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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.