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Finding the Fourth Proportional to 2,668.96, 4,011 and 1,573.84

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Solution

The fourth proportional to 2,668.96, 4,011 and 1,573.84 is: 2,365.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,668.96 : 4,011 = 1,573.84 : x
  2. Step 2: Convert to fraction form
    2,668.96/4,011 = 1,573.84/x
  3. Step 3: Cross multiply
    2,668.96x = 4,011 × 1,573.84
  4. Step 4: Simplify right side
    2,668.96x = 6,312,672.24
  5. Step 5: Solve for x
    x = 6,312,672.24/2,668.96
  6. Step 6: Final answer
    x = 2,365.22

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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.