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Finding the Fourth Proportional to 18,696,101.76, 25,804,923.84 and 10,963,634.88

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Solution

The fourth proportional to 18,696,101.76, 25,804,923.84 and 10,963,634.88 is: 15,132,339.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,696,101.76 : 25,804,923.84 = 10,963,634.88 : x
  2. Step 2: Convert to fraction form
    18,696,101.76/25,804,923.84 = 10,963,634.88/x
  3. Step 3: Cross multiply
    18,696,101.76x = 25,804,923.84 × 10,963,634.88
  4. Step 4: Simplify right side
    18,696,101.76x = 282,915,763,087,967.56
  5. Step 5: Solve for x
    x = 282,915,763,087,967.56/18,696,101.76
  6. Step 6: Final answer
    x = 15,132,339.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.