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Finding the Fourth Proportional to 28,992.21, 43,491.03 and 9,266.07

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Solution

The fourth proportional to 28,992.21, 43,491.03 and 9,266.07 is: 13,899.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,992.21 : 43,491.03 = 9,266.07 : x
  2. Step 2: Convert to fraction form
    28,992.21/43,491.03 = 9,266.07/x
  3. Step 3: Cross multiply
    28,992.21x = 43,491.03 × 9,266.07
  4. Step 4: Simplify right side
    28,992.21x = 402,990,928.35
  5. Step 5: Solve for x
    x = 402,990,928.35/28,992.21
  6. Step 6: Final answer
    x = 13,899.97

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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.