Home / 37,992.80-56,989.20-11,705.60

Finding the Fourth Proportional to 37,992.80, 56,989.20 and 11,705.60

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Solution

The fourth proportional to 37,992.80, 56,989.20 and 11,705.60 is: 17,558.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,992.80 : 56,989.20 = 11,705.60 : x
  2. Step 2: Convert to fraction form
    37,992.80/56,989.20 = 11,705.60/x
  3. Step 3: Cross multiply
    37,992.80x = 56,989.20 × 11,705.60
  4. Step 4: Simplify right side
    37,992.80x = 667,092,779.52
  5. Step 5: Solve for x
    x = 667,092,779.52/37,992.80
  6. Step 6: Final answer
    x = 17,558.40

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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.