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Finding the Fourth Proportional to 43,859.03, 65,674.04 and 28,818.86

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Solution

The fourth proportional to 43,859.03, 65,674.04 and 28,818.86 is: 43,153.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,859.03 : 65,674.04 = 28,818.86 : x
  2. Step 2: Convert to fraction form
    43,859.03/65,674.04 = 28,818.86/x
  3. Step 3: Cross multiply
    43,859.03x = 65,674.04 × 28,818.86
  4. Step 4: Simplify right side
    43,859.03x = 1,892,650,984.49
  5. Step 5: Solve for x
    x = 1,892,650,984.49/43,859.03
  6. Step 6: Final answer
    x = 43,153.05

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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.