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Finding the Fourth Proportional to 5,813.55, 8,717.72 and 1,864.08

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Solution

The fourth proportional to 5,813.55, 8,717.72 and 1,864.08 is: 2,795.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,813.55 : 8,717.72 = 1,864.08 : x
  2. Step 2: Convert to fraction form
    5,813.55/8,717.72 = 1,864.08/x
  3. Step 3: Cross multiply
    5,813.55x = 8,717.72 × 1,864.08
  4. Step 4: Simplify right side
    5,813.55x = 16,250,518.18
  5. Step 5: Solve for x
    x = 16,250,518.18/5,813.55
  6. Step 6: Final answer
    x = 2,795.28

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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.