Home / 51,786.91-77,696.69-18,506.23

Finding the Fourth Proportional to 51,786.91, 77,696.69 and 18,506.23

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Solution

The fourth proportional to 51,786.91, 77,696.69 and 18,506.23 is: 27,765.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,786.91 : 77,696.69 = 18,506.23 : x
  2. Step 2: Convert to fraction form
    51,786.91/77,696.69 = 18,506.23/x
  3. Step 3: Cross multiply
    51,786.91x = 77,696.69 × 18,506.23
  4. Step 4: Simplify right side
    51,786.91x = 1,437,872,815.38
  5. Step 5: Solve for x
    x = 1,437,872,815.38/51,786.91
  6. Step 6: Final answer
    x = 27,765.18

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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.