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Finding the Fourth Proportional to 5,854.03, 8,784.51 and 2,158.86

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Solution

The fourth proportional to 5,854.03, 8,784.51 and 2,158.86 is: 3,239.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,854.03 : 8,784.51 = 2,158.86 : x
  2. Step 2: Convert to fraction form
    5,854.03/8,784.51 = 2,158.86/x
  3. Step 3: Cross multiply
    5,854.03x = 8,784.51 × 2,158.86
  4. Step 4: Simplify right side
    5,854.03x = 18,964,527.26
  5. Step 5: Solve for x
    x = 18,964,527.26/5,854.03
  6. Step 6: Final answer
    x = 3,239.57

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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.