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Finding the Fourth Proportional to 8,806.70, 12,156.56 and 5,826.60

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Solution

The fourth proportional to 8,806.70, 12,156.56 and 5,826.60 is: 8,042.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,806.70 : 12,156.56 = 5,826.60 : x
  2. Step 2: Convert to fraction form
    8,806.70/12,156.56 = 5,826.60/x
  3. Step 3: Cross multiply
    8,806.70x = 12,156.56 × 5,826.60
  4. Step 4: Simplify right side
    8,806.70x = 70,831,412.50
  5. Step 5: Solve for x
    x = 70,831,412.50/8,806.70
  6. Step 6: Final answer
    x = 8,042.90

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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.