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Finding the Fourth Proportional to 28,442.08, 39,246.96 and 20,044

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Solution

The fourth proportional to 28,442.08, 39,246.96 and 20,044 is: 27,658.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,442.08 : 39,246.96 = 20,044 : x
  2. Step 2: Convert to fraction form
    28,442.08/39,246.96 = 20,044/x
  3. Step 3: Cross multiply
    28,442.08x = 39,246.96 × 20,044
  4. Step 4: Simplify right side
    28,442.08x = 786,666,066.24
  5. Step 5: Solve for x
    x = 786,666,066.24/28,442.08
  6. Step 6: Final answer
    x = 27,658.53

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.