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Finding the Fourth Proportional to 8,526,071.40, 12,789,107.10 and 8,526,071.40

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Solution

The fourth proportional to 8,526,071.40, 12,789,107.10 and 8,526,071.40 is: 12,789,107.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,526,071.40 : 12,789,107.10 = 8,526,071.40 : x
  2. Step 2: Convert to fraction form
    8,526,071.40/12,789,107.10 = 8,526,071.40/x
  3. Step 3: Cross multiply
    8,526,071.40x = 12,789,107.10 × 8,526,071.40
  4. Step 4: Simplify right side
    8,526,071.40x = 109,040,840,276,846.94
  5. Step 5: Solve for x
    x = 109,040,840,276,846.94/8,526,071.40
  6. Step 6: Final answer
    x = 12,789,107.10

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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.