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Finding the Fourth Proportional to 37,986.99, 56,980.51 and 9,906.98

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Solution

The fourth proportional to 37,986.99, 56,980.51 and 9,906.98 is: 14,860.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,986.99 : 56,980.51 = 9,906.98 : x
  2. Step 2: Convert to fraction form
    37,986.99/56,980.51 = 9,906.98/x
  3. Step 3: Cross multiply
    37,986.99x = 56,980.51 × 9,906.98
  4. Step 4: Simplify right side
    37,986.99x = 564,504,519.02
  5. Step 5: Solve for x
    x = 564,504,519.02/37,986.99
  6. Step 6: Final answer
    x = 14,860.47

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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.