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Finding the Fourth Proportional to 15,606,476.70, 21,863,997.30 and 15,606,476.70

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Solution

The fourth proportional to 15,606,476.70, 21,863,997.30 and 15,606,476.70 is: 21,863,997.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,606,476.70 : 21,863,997.30 = 15,606,476.70 : x
  2. Step 2: Convert to fraction form
    15,606,476.70/21,863,997.30 = 15,606,476.70/x
  3. Step 3: Cross multiply
    15,606,476.70x = 21,863,997.30 × 15,606,476.70
  4. Step 4: Simplify right side
    15,606,476.70x = 341,219,964,431,312.88
  5. Step 5: Solve for x
    x = 341,219,964,431,312.88/15,606,476.70
  6. Step 6: Final answer
    x = 21,863,997.30

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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.