Home / 19,085.65-28,608.87-7,998.77

Finding the Fourth Proportional to 19,085.65, 28,608.87 and 7,998.77

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Solution

The fourth proportional to 19,085.65, 28,608.87 and 7,998.77 is: 11,989.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,085.65 : 28,608.87 = 7,998.77 : x
  2. Step 2: Convert to fraction form
    19,085.65/28,608.87 = 7,998.77/x
  3. Step 3: Cross multiply
    19,085.65x = 28,608.87 × 7,998.77
  4. Step 4: Simplify right side
    19,085.65x = 228,835,872.61
  5. Step 5: Solve for x
    x = 228,835,872.61/19,085.65
  6. Step 6: Final answer
    x = 11,989.95

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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.