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Finding the Fourth Proportional to 13,953.52, 19,255.53 and 7,579.96

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Solution

The fourth proportional to 13,953.52, 19,255.53 and 7,579.96 is: 10,460.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,953.52 : 19,255.53 = 7,579.96 : x
  2. Step 2: Convert to fraction form
    13,953.52/19,255.53 = 7,579.96/x
  3. Step 3: Cross multiply
    13,953.52x = 19,255.53 × 7,579.96
  4. Step 4: Simplify right side
    13,953.52x = 145,956,147.18
  5. Step 5: Solve for x
    x = 145,956,147.18/13,953.52
  6. Step 6: Final answer
    x = 10,460.17

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.