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Finding the Fourth Proportional to 14,874.36, 22,290.90 and 8,290.68

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Solution

The fourth proportional to 14,874.36, 22,290.90 and 8,290.68 is: 12,424.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,874.36 : 22,290.90 = 8,290.68 : x
  2. Step 2: Convert to fraction form
    14,874.36/22,290.90 = 8,290.68/x
  3. Step 3: Cross multiply
    14,874.36x = 22,290.90 × 8,290.68
  4. Step 4: Simplify right side
    14,874.36x = 184,806,718.81
  5. Step 5: Solve for x
    x = 184,806,718.81/14,874.36
  6. Step 6: Final answer
    x = 12,424.52

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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.