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Finding the Fourth Proportional to 7,461,801.80, 11,192,702.70 and 2,669,647.40

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Solution

The fourth proportional to 7,461,801.80, 11,192,702.70 and 2,669,647.40 is: 4,004,471.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,461,801.80 : 11,192,702.70 = 2,669,647.40 : x
  2. Step 2: Convert to fraction form
    7,461,801.80/11,192,702.70 = 2,669,647.40/x
  3. Step 3: Cross multiply
    7,461,801.80x = 11,192,702.70 × 2,669,647.40
  4. Step 4: Simplify right side
    7,461,801.80x = 29,880,569,662,027.98
  5. Step 5: Solve for x
    x = 29,880,569,662,027.98/7,461,801.80
  6. Step 6: Final answer
    x = 4,004,471.10

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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.