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Finding the Fourth Proportional to 16,642,668.65, 23,366,920.75 and 16,642,668.65

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Solution

The fourth proportional to 16,642,668.65, 23,366,920.75 and 16,642,668.65 is: 23,366,920.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,642,668.65 : 23,366,920.75 = 16,642,668.65 : x
  2. Step 2: Convert to fraction form
    16,642,668.65/23,366,920.75 = 16,642,668.65/x
  3. Step 3: Cross multiply
    16,642,668.65x = 23,366,920.75 × 16,642,668.65
  4. Step 4: Simplify right side
    16,642,668.65x = 388,887,919,413,059.50
  5. Step 5: Solve for x
    x = 388,887,919,413,059.50/16,642,668.65
  6. Step 6: Final answer
    x = 23,366,920.75

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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.