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Finding the Fourth Proportional to 5,759.16, 8,639.38 and 1,655.16

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Solution

The fourth proportional to 5,759.16, 8,639.38 and 1,655.16 is: 2,482.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,759.16 : 8,639.38 = 1,655.16 : x
  2. Step 2: Convert to fraction form
    5,759.16/8,639.38 = 1,655.16/x
  3. Step 3: Cross multiply
    5,759.16x = 8,639.38 × 1,655.16
  4. Step 4: Simplify right side
    5,759.16x = 14,299,556.20
  5. Step 5: Solve for x
    x = 14,299,556.20/5,759.16
  6. Step 6: Final answer
    x = 2,482.92

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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.