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Finding the Fourth Proportional to 8,806,912.20, 13,210,368.30 and 7,463,219.40

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Solution

The fourth proportional to 8,806,912.20, 13,210,368.30 and 7,463,219.40 is: 11,194,829.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,806,912.20 : 13,210,368.30 = 7,463,219.40 : x
  2. Step 2: Convert to fraction form
    8,806,912.20/13,210,368.30 = 7,463,219.40/x
  3. Step 3: Cross multiply
    8,806,912.20x = 13,210,368.30 × 7,463,219.40
  4. Step 4: Simplify right side
    8,806,912.20x = 98,591,876,977,705.03
  5. Step 5: Solve for x
    x = 98,591,876,977,705.03/8,806,912.20
  6. Step 6: Final answer
    x = 11,194,829.10

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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.