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Finding the Fourth Proportional to 21,058.44, 31,588.47 and 6,267.12

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Solution

The fourth proportional to 21,058.44, 31,588.47 and 6,267.12 is: 9,400.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,058.44 : 31,588.47 = 6,267.12 : x
  2. Step 2: Convert to fraction form
    21,058.44/31,588.47 = 6,267.12/x
  3. Step 3: Cross multiply
    21,058.44x = 31,588.47 × 6,267.12
  4. Step 4: Simplify right side
    21,058.44x = 197,968,732.11
  5. Step 5: Solve for x
    x = 197,968,732.11/21,058.44
  6. Step 6: Final answer
    x = 9,400.92

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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.