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Finding the Fourth Proportional to 32,991.68, 49,479.93 and 19,668.44

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Solution

The fourth proportional to 32,991.68, 49,479.93 and 19,668.44 is: 29,498.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,991.68 : 49,479.93 = 19,668.44 : x
  2. Step 2: Convert to fraction form
    32,991.68/49,479.93 = 19,668.44/x
  3. Step 3: Cross multiply
    32,991.68x = 49,479.93 × 19,668.44
  4. Step 4: Simplify right side
    32,991.68x = 973,193,158.11
  5. Step 5: Solve for x
    x = 973,193,158.11/32,991.68
  6. Step 6: Final answer
    x = 29,498.14

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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.