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Finding the Fourth Proportional to 10,373, 15,526.20 and 5,435.60

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Solution

The fourth proportional to 10,373, 15,526.20 and 5,435.60 is: 8,135.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,373 : 15,526.20 = 5,435.60 : x
  2. Step 2: Convert to fraction form
    10,373/15,526.20 = 5,435.60/x
  3. Step 3: Cross multiply
    10,373x = 15,526.20 × 5,435.60
  4. Step 4: Simplify right side
    10,373x = 84,394,212.72
  5. Step 5: Solve for x
    x = 84,394,212.72/10,373
  6. Step 6: Final answer
    x = 8,135.95

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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.