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Finding the Fourth Proportional to 45,993.42, 68,976.78 and 17,907.20

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Solution

The fourth proportional to 45,993.42, 68,976.78 and 17,907.20 is: 26,855.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,993.42 : 68,976.78 = 17,907.20 : x
  2. Step 2: Convert to fraction form
    45,993.42/68,976.78 = 17,907.20/x
  3. Step 3: Cross multiply
    45,993.42x = 68,976.78 × 17,907.20
  4. Step 4: Simplify right side
    45,993.42x = 1,235,180,994.82
  5. Step 5: Solve for x
    x = 1,235,180,994.82/45,993.42
  6. Step 6: Final answer
    x = 26,855.60

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1.5x scale

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.