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Finding the Fourth Proportional to 5,870.34, 8,806.86 and 1,921.73

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Solution

The fourth proportional to 5,870.34, 8,806.86 and 1,921.73 is: 2,883.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,870.34 : 8,806.86 = 1,921.73 : x
  2. Step 2: Convert to fraction form
    5,870.34/8,806.86 = 1,921.73/x
  3. Step 3: Cross multiply
    5,870.34x = 8,806.86 × 1,921.73
  4. Step 4: Simplify right side
    5,870.34x = 16,924,363.03
  5. Step 5: Solve for x
    x = 16,924,363.03/5,870.34
  6. Step 6: Final answer
    x = 2,883.03

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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.