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Finding the Fourth Proportional to 6,750.83, 10,128.13 and 2,070.99

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Solution

The fourth proportional to 6,750.83, 10,128.13 and 2,070.99 is: 3,107.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,750.83 : 10,128.13 = 2,070.99 : x
  2. Step 2: Convert to fraction form
    6,750.83/10,128.13 = 2,070.99/x
  3. Step 3: Cross multiply
    6,750.83x = 10,128.13 × 2,070.99
  4. Step 4: Simplify right side
    6,750.83x = 20,975,276.34
  5. Step 5: Solve for x
    x = 20,975,276.34/6,750.83
  6. Step 6: Final answer
    x = 3,107.07

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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.