Home / 27,515.92-41,290.28-9,987.12

Finding the Fourth Proportional to 27,515.92, 41,290.28 and 9,987.12

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Solution

The fourth proportional to 27,515.92, 41,290.28 and 9,987.12 is: 14,986.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,515.92 : 41,290.28 = 9,987.12 : x
  2. Step 2: Convert to fraction form
    27,515.92/41,290.28 = 9,987.12/x
  3. Step 3: Cross multiply
    27,515.92x = 41,290.28 × 9,987.12
  4. Step 4: Simplify right side
    27,515.92x = 412,370,724.81
  5. Step 5: Solve for x
    x = 412,370,724.81/27,515.92
  6. Step 6: Final answer
    x = 14,986.62

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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.