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Finding the Fourth Proportional to 28,972.22, 43,448.94 and 9,246.11

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Solution

The fourth proportional to 28,972.22, 43,448.94 and 9,246.11 is: 13,866.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,972.22 : 43,448.94 = 9,246.11 : x
  2. Step 2: Convert to fraction form
    28,972.22/43,448.94 = 9,246.11/x
  3. Step 3: Cross multiply
    28,972.22x = 43,448.94 × 9,246.11
  4. Step 4: Simplify right side
    28,972.22x = 401,733,461.38
  5. Step 5: Solve for x
    x = 401,733,461.38/28,972.22
  6. Step 6: Final answer
    x = 13,866.16

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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.