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Finding the Fourth Proportional to 8,981.46, 12,392.46 and 5,445.54

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Solution

The fourth proportional to 8,981.46, 12,392.46 and 5,445.54 is: 7,513.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,981.46 : 12,392.46 = 5,445.54 : x
  2. Step 2: Convert to fraction form
    8,981.46/12,392.46 = 5,445.54/x
  3. Step 3: Cross multiply
    8,981.46x = 12,392.46 × 5,445.54
  4. Step 4: Simplify right side
    8,981.46x = 67,483,636.63
  5. Step 5: Solve for x
    x = 67,483,636.63/8,981.46
  6. Step 6: Final answer
    x = 7,513.66

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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.