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Finding the Fourth Proportional to 8,936,999.30, 13,378,926.90 and 8,936,999.30

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Solution

The fourth proportional to 8,936,999.30, 13,378,926.90 and 8,936,999.30 is: 13,378,926.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,936,999.30 : 13,378,926.90 = 8,936,999.30 : x
  2. Step 2: Convert to fraction form
    8,936,999.30/13,378,926.90 = 8,936,999.30/x
  3. Step 3: Cross multiply
    8,936,999.30x = 13,378,926.90 × 8,936,999.30
  4. Step 4: Simplify right side
    8,936,999.30x = 119,567,460,340,051.19
  5. Step 5: Solve for x
    x = 119,567,460,340,051.19/8,936,999.30
  6. Step 6: Final answer
    x = 13,378,926.90

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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.