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Finding the Fourth Proportional to 37,990.86, 56,992.41 and 11,695.59

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Solution

The fourth proportional to 37,990.86, 56,992.41 and 11,695.59 is: 17,545.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,990.86 : 56,992.41 = 11,695.59 : x
  2. Step 2: Convert to fraction form
    37,990.86/56,992.41 = 11,695.59/x
  3. Step 3: Cross multiply
    37,990.86x = 56,992.41 × 11,695.59
  4. Step 4: Simplify right side
    37,990.86x = 666,559,860.47
  5. Step 5: Solve for x
    x = 666,559,860.47/37,990.86
  6. Step 6: Final answer
    x = 17,545.27

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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.