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Finding the Fourth Proportional to 2,795.65, 4,188.98 and 2,051.80

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Solution

The fourth proportional to 2,795.65, 4,188.98 and 2,051.80 is: 3,074.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,795.65 : 4,188.98 = 2,051.80 : x
  2. Step 2: Convert to fraction form
    2,795.65/4,188.98 = 2,051.80/x
  3. Step 3: Cross multiply
    2,795.65x = 4,188.98 × 2,051.80
  4. Step 4: Simplify right side
    2,795.65x = 8,594,949.16
  5. Step 5: Solve for x
    x = 8,594,949.16/2,795.65
  6. Step 6: Final answer
    x = 3,074.40

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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.