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Finding the Fourth Proportional to 5,862.12, 8,780.40 and 2,935.32

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Solution

The fourth proportional to 5,862.12, 8,780.40 and 2,935.32 is: 4,396.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,862.12 : 8,780.40 = 2,935.32 : x
  2. Step 2: Convert to fraction form
    5,862.12/8,780.40 = 2,935.32/x
  3. Step 3: Cross multiply
    5,862.12x = 8,780.40 × 2,935.32
  4. Step 4: Simplify right side
    5,862.12x = 25,773,283.73
  5. Step 5: Solve for x
    x = 25,773,283.73/5,862.12
  6. Step 6: Final answer
    x = 4,396.58

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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.