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Finding the Fourth Proportional to 10,605.52, 15,898.38 and 5,056.12

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Solution

The fourth proportional to 10,605.52, 15,898.38 and 5,056.12 is: 7,579.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,605.52 : 15,898.38 = 5,056.12 : x
  2. Step 2: Convert to fraction form
    10,605.52/15,898.38 = 5,056.12/x
  3. Step 3: Cross multiply
    10,605.52x = 15,898.38 × 5,056.12
  4. Step 4: Simplify right side
    10,605.52x = 80,384,117.09
  5. Step 5: Solve for x
    x = 80,384,117.09/10,605.52
  6. Step 6: Final answer
    x = 7,579.46

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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.