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Finding the Fourth Proportional to 37,986.94, 56,987.97 and 11,690.68

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Solution

The fourth proportional to 37,986.94, 56,987.97 and 11,690.68 is: 17,538.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,986.94 : 56,987.97 = 11,690.68 : x
  2. Step 2: Convert to fraction form
    37,986.94/56,987.97 = 11,690.68/x
  3. Step 3: Cross multiply
    37,986.94x = 56,987.97 × 11,690.68
  4. Step 4: Simplify right side
    37,986.94x = 666,228,121.12
  5. Step 5: Solve for x
    x = 666,228,121.12/37,986.94
  6. Step 6: Final answer
    x = 17,538.35

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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.