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Finding the Fourth Proportional to 3,777.98, 5,666.98 and 1,470.02

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Solution

The fourth proportional to 3,777.98, 5,666.98 and 1,470.02 is: 2,205.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,777.98 : 5,666.98 = 1,470.02 : x
  2. Step 2: Convert to fraction form
    3,777.98/5,666.98 = 1,470.02/x
  3. Step 3: Cross multiply
    3,777.98x = 5,666.98 × 1,470.02
  4. Step 4: Simplify right side
    3,777.98x = 8,330,573.94
  5. Step 5: Solve for x
    x = 8,330,573.94/3,777.98
  6. Step 6: Final answer
    x = 2,205.03

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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.