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Finding the Fourth Proportional to 8,856.74, 12,228.18 and 5,504.56

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Solution

The fourth proportional to 8,856.74, 12,228.18 and 5,504.56 is: 7,599.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,856.74 : 12,228.18 = 5,504.56 : x
  2. Step 2: Convert to fraction form
    8,856.74/12,228.18 = 5,504.56/x
  3. Step 3: Cross multiply
    8,856.74x = 12,228.18 × 5,504.56
  4. Step 4: Simplify right side
    8,856.74x = 67,310,750.50
  5. Step 5: Solve for x
    x = 67,310,750.50/8,856.74
  6. Step 6: Final answer
    x = 7,599.95

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1.5x scale

Why These Related Problems?

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