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Finding the Fourth Proportional to 7,825.50, 10,799.19 and 4,513.50

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Solution

The fourth proportional to 7,825.50, 10,799.19 and 4,513.50 is: 6,228.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,825.50 : 10,799.19 = 4,513.50 : x
  2. Step 2: Convert to fraction form
    7,825.50/10,799.19 = 4,513.50/x
  3. Step 3: Cross multiply
    7,825.50x = 10,799.19 × 4,513.50
  4. Step 4: Simplify right side
    7,825.50x = 48,742,144.07
  5. Step 5: Solve for x
    x = 48,742,144.07/7,825.50
  6. Step 6: Final answer
    x = 6,228.63

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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.