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Finding the Fourth Proportional to 19,936,807.40, 29,905,211.10 and 19,936,807.40

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Solution

The fourth proportional to 19,936,807.40, 29,905,211.10 and 19,936,807.40 is: 29,905,211.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,936,807.40 : 29,905,211.10 = 19,936,807.40 : x
  2. Step 2: Convert to fraction form
    19,936,807.40/29,905,211.10 = 19,936,807.40/x
  3. Step 3: Cross multiply
    19,936,807.40x = 29,905,211.10 × 19,936,807.40
  4. Step 4: Simplify right side
    19,936,807.40x = 596,214,433,957,042.12
  5. Step 5: Solve for x
    x = 596,214,433,957,042.12/19,936,807.40
  6. Step 6: Final answer
    x = 29,905,211.10

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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.