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Finding the Fourth Proportional to 45,647.80, 68,586.90 and 29,015.80

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Solution

The fourth proportional to 45,647.80, 68,586.90 and 29,015.80 is: 43,596.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,647.80 : 68,586.90 = 29,015.80 : x
  2. Step 2: Convert to fraction form
    45,647.80/68,586.90 = 29,015.80/x
  3. Step 3: Cross multiply
    45,647.80x = 68,586.90 × 29,015.80
  4. Step 4: Simplify right side
    45,647.80x = 1,990,103,773.02
  5. Step 5: Solve for x
    x = 1,990,103,773.02/45,647.80
  6. Step 6: Final answer
    x = 43,596.93

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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.