Home / 7,005.12-10,506.78-2,074.65

Finding the Fourth Proportional to 7,005.12, 10,506.78 and 2,074.65

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Solution

The fourth proportional to 7,005.12, 10,506.78 and 2,074.65 is: 3,111.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,005.12 : 10,506.78 = 2,074.65 : x
  2. Step 2: Convert to fraction form
    7,005.12/10,506.78 = 2,074.65/x
  3. Step 3: Cross multiply
    7,005.12x = 10,506.78 × 2,074.65
  4. Step 4: Simplify right side
    7,005.12x = 21,797,891.13
  5. Step 5: Solve for x
    x = 21,797,891.13/7,005.12
  6. Step 6: Final answer
    x = 3,111.71

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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.