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Finding the Fourth Proportional to 22,807.20, 34,210.80 and 22,231.20

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Solution

The fourth proportional to 22,807.20, 34,210.80 and 22,231.20 is: 33,346.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,807.20 : 34,210.80 = 22,231.20 : x
  2. Step 2: Convert to fraction form
    22,807.20/34,210.80 = 22,231.20/x
  3. Step 3: Cross multiply
    22,807.20x = 34,210.80 × 22,231.20
  4. Step 4: Simplify right side
    22,807.20x = 760,547,136.96
  5. Step 5: Solve for x
    x = 760,547,136.96/22,807.20
  6. Step 6: Final answer
    x = 33,346.80

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.