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Finding the Fourth Proportional to 7,367.68, 11,051.55 and 2,985.22

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Solution

The fourth proportional to 7,367.68, 11,051.55 and 2,985.22 is: 4,477.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,367.68 : 11,051.55 = 2,985.22 : x
  2. Step 2: Convert to fraction form
    7,367.68/11,051.55 = 2,985.22/x
  3. Step 3: Cross multiply
    7,367.68x = 11,051.55 × 2,985.22
  4. Step 4: Simplify right side
    7,367.68x = 32,991,308.09
  5. Step 5: Solve for x
    x = 32,991,308.09/7,367.68
  6. Step 6: Final answer
    x = 4,477.84

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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.