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Finding the Fourth Proportional to 7,223,550.08, 9,968,611.68 and 3,960,662.72

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Solution

The fourth proportional to 7,223,550.08, 9,968,611.68 and 3,960,662.72 is: 5,465,776.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,223,550.08 : 9,968,611.68 = 3,960,662.72 : x
  2. Step 2: Convert to fraction form
    7,223,550.08/9,968,611.68 = 3,960,662.72/x
  3. Step 3: Cross multiply
    7,223,550.08x = 9,968,611.68 × 3,960,662.72
  4. Step 4: Simplify right side
    7,223,550.08x = 39,482,308,651,132.57
  5. Step 5: Solve for x
    x = 39,482,308,651,132.57/7,223,550.08
  6. Step 6: Final answer
    x = 5,465,776.28

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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.