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Finding the Fourth Proportional to 21,557,863.30, 32,336,794.95 and 21,557,863.30

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Solution

The fourth proportional to 21,557,863.30, 32,336,794.95 and 21,557,863.30 is: 32,336,794.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,557,863.30 : 32,336,794.95 = 21,557,863.30 : x
  2. Step 2: Convert to fraction form
    21,557,863.30/32,336,794.95 = 21,557,863.30/x
  3. Step 3: Cross multiply
    21,557,863.30x = 32,336,794.95 × 21,557,863.30
  4. Step 4: Simplify right side
    21,557,863.30x = 697,112,205,092,230.38
  5. Step 5: Solve for x
    x = 697,112,205,092,230.38/21,557,863.30
  6. Step 6: Final answer
    x = 32,336,794.95

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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.