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Finding the Fourth Proportional to 8,806.76, 12,153.17 and 4,827.90

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Solution

The fourth proportional to 8,806.76, 12,153.17 and 4,827.90 is: 6,662.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,806.76 : 12,153.17 = 4,827.90 : x
  2. Step 2: Convert to fraction form
    8,806.76/12,153.17 = 4,827.90/x
  3. Step 3: Cross multiply
    8,806.76x = 12,153.17 × 4,827.90
  4. Step 4: Simplify right side
    8,806.76x = 58,674,289.44
  5. Step 5: Solve for x
    x = 58,674,289.44/8,806.76
  6. Step 6: Final answer
    x = 6,662.41

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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.