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Finding the Fourth Proportional to 8,409,338.10, 11,804,959.80 and 8,409,338.10

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Solution

The fourth proportional to 8,409,338.10, 11,804,959.80 and 8,409,338.10 is: 11,804,959.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,409,338.10 : 11,804,959.80 = 8,409,338.10 : x
  2. Step 2: Convert to fraction form
    8,409,338.10/11,804,959.80 = 8,409,338.10/x
  3. Step 3: Cross multiply
    8,409,338.10x = 11,804,959.80 × 8,409,338.10
  4. Step 4: Simplify right side
    8,409,338.10x = 99,271,898,215,108.38
  5. Step 5: Solve for x
    x = 99,271,898,215,108.38/8,409,338.10
  6. Step 6: Final answer
    x = 11,804,959.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.