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Finding the Fourth Proportional to 8,806,936.10, 13,210,404.15 and 8,471,012.90

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Solution

The fourth proportional to 8,806,936.10, 13,210,404.15 and 8,471,012.90 is: 12,706,519.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,806,936.10 : 13,210,404.15 = 8,471,012.90 : x
  2. Step 2: Convert to fraction form
    8,806,936.10/13,210,404.15 = 8,471,012.90/x
  3. Step 3: Cross multiply
    8,806,936.10x = 13,210,404.15 × 8,471,012.90
  4. Step 4: Simplify right side
    8,806,936.10x = 111,905,503,968,863.55
  5. Step 5: Solve for x
    x = 111,905,503,968,863.55/8,806,936.10
  6. Step 6: Final answer
    x = 12,706,519.35

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Similar ratio
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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.