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Finding the Fourth Proportional to 10,929.43, 16,395.05 and 4,352.03

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Solution

The fourth proportional to 10,929.43, 16,395.05 and 4,352.03 is: 6,528.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,929.43 : 16,395.05 = 4,352.03 : x
  2. Step 2: Convert to fraction form
    10,929.43/16,395.05 = 4,352.03/x
  3. Step 3: Cross multiply
    10,929.43x = 16,395.05 × 4,352.03
  4. Step 4: Simplify right side
    10,929.43x = 71,351,667.48
  5. Step 5: Solve for x
    x = 71,351,667.48/10,929.43
  6. Step 6: Final answer
    x = 6,528.40

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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.