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Finding the Fourth Proportional to 3,963,915.70, 5,562,079.10 and 3,963,915.70

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Solution

The fourth proportional to 3,963,915.70, 5,562,079.10 and 3,963,915.70 is: 5,562,079.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,963,915.70 : 5,562,079.10 = 3,963,915.70 : x
  2. Step 2: Convert to fraction form
    3,963,915.70/5,562,079.10 = 3,963,915.70/x
  3. Step 3: Cross multiply
    3,963,915.70x = 5,562,079.10 × 3,963,915.70
  4. Step 4: Simplify right side
    3,963,915.70x = 22,047,612,669,131.87
  5. Step 5: Solve for x
    x = 22,047,612,669,131.87/3,963,915.70
  6. Step 6: Final answer
    x = 5,562,079.10

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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.