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Finding the Fourth Proportional to 3,707.80, 5,547.30 and 2,411.80

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Solution

The fourth proportional to 3,707.80, 5,547.30 and 2,411.80 is: 3,608.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,707.80 : 5,547.30 = 2,411.80 : x
  2. Step 2: Convert to fraction form
    3,707.80/5,547.30 = 2,411.80/x
  3. Step 3: Cross multiply
    3,707.80x = 5,547.30 × 2,411.80
  4. Step 4: Simplify right side
    3,707.80x = 13,378,978.14
  5. Step 5: Solve for x
    x = 13,378,978.14/3,707.80
  6. Step 6: Final answer
    x = 3,608.33

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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.