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Finding the Fourth Proportional to 15,696,736.20, 21,925,042.20 and 15,696,736.20

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Solution

The fourth proportional to 15,696,736.20, 21,925,042.20 and 15,696,736.20 is: 21,925,042.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,696,736.20 : 21,925,042.20 = 15,696,736.20 : x
  2. Step 2: Convert to fraction form
    15,696,736.20/21,925,042.20 = 15,696,736.20/x
  3. Step 3: Cross multiply
    15,696,736.20x = 21,925,042.20 × 15,696,736.20
  4. Step 4: Simplify right side
    15,696,736.20x = 344,151,603,587,267.62
  5. Step 5: Solve for x
    x = 344,151,603,587,267.62/15,696,736.20
  6. Step 6: Final answer
    x = 21,925,042.20

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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.