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Finding the Fourth Proportional to 21,275,137,934.60, 29,834,170,711 and 21,275,137,934.60

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Solution

The fourth proportional to 21,275,137,934.60, 29,834,170,711 and 21,275,137,934.60 is: 29,834,170,711

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,275,137,934.60 : 29,834,170,711 = 21,275,137,934.60 : x
  2. Step 2: Convert to fraction form
    21,275,137,934.60/29,834,170,711 = 21,275,137,934.60/x
  3. Step 3: Cross multiply
    21,275,137,934.60x = 29,834,170,711 × 21,275,137,934.60
  4. Step 4: Simplify right side
    21,275,137,934.60x = 634,726,097,040,928,276,480
  5. Step 5: Solve for x
    x = 634,726,097,040,928,276,480/21,275,137,934.60
  6. Step 6: Final answer
    x = 29,834,170,711

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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.