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Finding the Fourth Proportional to 6,907,572.80, 10,342,696.80 and 5,414,580.80

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Solution

The fourth proportional to 6,907,572.80, 10,342,696.80 and 5,414,580.80 is: 8,107,242.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,907,572.80 : 10,342,696.80 = 5,414,580.80 : x
  2. Step 2: Convert to fraction form
    6,907,572.80/10,342,696.80 = 5,414,580.80/x
  3. Step 3: Cross multiply
    6,907,572.80x = 10,342,696.80 × 5,414,580.80
  4. Step 4: Simplify right side
    6,907,572.80x = 56,001,367,513,501.45
  5. Step 5: Solve for x
    x = 56,001,367,513,501.45/6,907,572.80
  6. Step 6: Final answer
    x = 8,107,242.46

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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.