Home / 43,976.19-65,939.63-19,000.65

Finding the Fourth Proportional to 43,976.19, 65,939.63 and 19,000.65

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Solution

The fourth proportional to 43,976.19, 65,939.63 and 19,000.65 is: 28,490.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,976.19 : 65,939.63 = 19,000.65 : x
  2. Step 2: Convert to fraction form
    43,976.19/65,939.63 = 19,000.65/x
  3. Step 3: Cross multiply
    43,976.19x = 65,939.63 × 19,000.65
  4. Step 4: Simplify right side
    43,976.19x = 1,252,895,735.76
  5. Step 5: Solve for x
    x = 1,252,895,735.76/43,976.19
  6. Step 6: Final answer
    x = 28,490.32

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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.