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Finding the Fourth Proportional to 5,603.18, 8,390.18 and 2,993.36

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Solution

The fourth proportional to 5,603.18, 8,390.18 and 2,993.36 is: 4,482.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,603.18 : 8,390.18 = 2,993.36 : x
  2. Step 2: Convert to fraction form
    5,603.18/8,390.18 = 2,993.36/x
  3. Step 3: Cross multiply
    5,603.18x = 8,390.18 × 2,993.36
  4. Step 4: Simplify right side
    5,603.18x = 25,114,794.74
  5. Step 5: Solve for x
    x = 25,114,794.74/5,603.18
  6. Step 6: Final answer
    x = 4,482.24

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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.