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Finding the Fourth Proportional to 11,209,940.65, 16,785,017.42 and 11,209,940.65

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Solution

The fourth proportional to 11,209,940.65, 16,785,017.42 and 11,209,940.65 is: 16,785,017.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,209,940.65 : 16,785,017.42 = 11,209,940.65 : x
  2. Step 2: Convert to fraction form
    11,209,940.65/16,785,017.42 = 11,209,940.65/x
  3. Step 3: Cross multiply
    11,209,940.65x = 16,785,017.42 × 11,209,940.65
  4. Step 4: Simplify right side
    11,209,940.65x = 188,159,049,087,416.16
  5. Step 5: Solve for x
    x = 188,159,049,087,416.16/11,209,940.65
  6. Step 6: Final answer
    x = 16,785,017.42

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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.