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Finding the Fourth Proportional to 16,996,668.90, 25,509,518.55 and 6,906,531.30

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Solution

The fourth proportional to 16,996,668.90, 25,509,518.55 and 6,906,531.30 is: 10,365,695.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,996,668.90 : 25,509,518.55 = 6,906,531.30 : x
  2. Step 2: Convert to fraction form
    16,996,668.90/25,509,518.55 = 6,906,531.30/x
  3. Step 3: Cross multiply
    16,996,668.90x = 25,509,518.55 × 6,906,531.30
  4. Step 4: Simplify right side
    16,996,668.90x = 176,182,288,313,505.62
  5. Step 5: Solve for x
    x = 176,182,288,313,505.62/16,996,668.90
  6. Step 6: Final answer
    x = 10,365,695.15

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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.