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Finding the Fourth Proportional to 8,543.25, 12,814.88 and 2,700.05

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Solution

The fourth proportional to 8,543.25, 12,814.88 and 2,700.05 is: 4,050.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,543.25 : 12,814.88 = 2,700.05 : x
  2. Step 2: Convert to fraction form
    8,543.25/12,814.88 = 2,700.05/x
  3. Step 3: Cross multiply
    8,543.25x = 12,814.88 × 2,700.05
  4. Step 4: Simplify right side
    8,543.25x = 34,600,739.17
  5. Step 5: Solve for x
    x = 34,600,739.17/8,543.25
  6. Step 6: Final answer
    x = 4,050.07

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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.