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Finding the Fourth Proportional to 28,843,904.41, 39,804,597.08 and 15,791,992.32

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Solution

The fourth proportional to 28,843,904.41, 39,804,597.08 and 15,791,992.32 is: 21,792,954.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,843,904.41 : 39,804,597.08 = 15,791,992.32 : x
  2. Step 2: Convert to fraction form
    28,843,904.41/39,804,597.08 = 15,791,992.32/x
  3. Step 3: Cross multiply
    28,843,904.41x = 39,804,597.08 × 15,791,992.32
  4. Step 4: Simplify right side
    28,843,904.41x = 628,593,891,388,054.38
  5. Step 5: Solve for x
    x = 628,593,891,388,054.38/28,843,904.41
  6. Step 6: Final answer
    x = 21,792,954.33

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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.