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Finding the Fourth Proportional to 43,929.12, 65,877.12 and 15,841.68

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Solution

The fourth proportional to 43,929.12, 65,877.12 and 15,841.68 is: 23,756.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,929.12 : 65,877.12 = 15,841.68 : x
  2. Step 2: Convert to fraction form
    43,929.12/65,877.12 = 15,841.68/x
  3. Step 3: Cross multiply
    43,929.12x = 65,877.12 × 15,841.68
  4. Step 4: Simplify right side
    43,929.12x = 1,043,604,254.36
  5. Step 5: Solve for x
    x = 1,043,604,254.36/43,929.12
  6. Step 6: Final answer
    x = 23,756.55

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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.