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Finding the Fourth Proportional to 43,929, 65,930.76 and 17,651.52

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Solution

The fourth proportional to 43,929, 65,930.76 and 17,651.52 is: 26,492.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,929 : 65,930.76 = 17,651.52 : x
  2. Step 2: Convert to fraction form
    43,929/65,930.76 = 17,651.52/x
  3. Step 3: Cross multiply
    43,929x = 65,930.76 × 17,651.52
  4. Step 4: Simplify right side
    43,929x = 1,163,778,128.76
  5. Step 5: Solve for x
    x = 1,163,778,128.76/43,929
  6. Step 6: Final answer
    x = 26,492.25

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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.