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Finding the Fourth Proportional to 5,203.52, 7,805.52 and 3,619.16

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Solution

The fourth proportional to 5,203.52, 7,805.52 and 3,619.16 is: 5,428.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,203.52 : 7,805.52 = 3,619.16 : x
  2. Step 2: Convert to fraction form
    5,203.52/7,805.52 = 3,619.16/x
  3. Step 3: Cross multiply
    5,203.52x = 7,805.52 × 3,619.16
  4. Step 4: Simplify right side
    5,203.52x = 28,249,425.76
  5. Step 5: Solve for x
    x = 28,249,425.76/5,203.52
  6. Step 6: Final answer
    x = 5,428.91

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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.