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Finding the Fourth Proportional to 19,987,957.53, 27,583,390.62 and 10,820,600.28

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Solution

The fourth proportional to 19,987,957.53, 27,583,390.62 and 10,820,600.28 is: 14,932,433.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,987,957.53 : 27,583,390.62 = 10,820,600.28 : x
  2. Step 2: Convert to fraction form
    19,987,957.53/27,583,390.62 = 10,820,600.28/x
  3. Step 3: Cross multiply
    19,987,957.53x = 27,583,390.62 × 10,820,600.28
  4. Step 4: Simplify right side
    19,987,957.53x = 298,468,844,266,121.38
  5. Step 5: Solve for x
    x = 298,468,844,266,121.38/19,987,957.53
  6. Step 6: Final answer
    x = 14,932,433.38

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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.