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Finding the Fourth Proportional to 22,571.16, 33,857.46 and 7,779.88

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Solution

The fourth proportional to 22,571.16, 33,857.46 and 7,779.88 is: 11,670.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,571.16 : 33,857.46 = 7,779.88 : x
  2. Step 2: Convert to fraction form
    22,571.16/33,857.46 = 7,779.88/x
  3. Step 3: Cross multiply
    22,571.16x = 33,857.46 × 7,779.88
  4. Step 4: Simplify right side
    22,571.16x = 263,406,975.90
  5. Step 5: Solve for x
    x = 263,406,975.90/22,571.16
  6. Step 6: Final answer
    x = 11,670.07

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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.