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Finding the Fourth Proportional to 8,807,356.40, 13,211,034.60 and 2,824,329.20

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Solution

The fourth proportional to 8,807,356.40, 13,211,034.60 and 2,824,329.20 is: 4,236,493.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,807,356.40 : 13,211,034.60 = 2,824,329.20 : x
  2. Step 2: Convert to fraction form
    8,807,356.40/13,211,034.60 = 2,824,329.20/x
  3. Step 3: Cross multiply
    8,807,356.40x = 13,211,034.60 × 2,824,329.20
  4. Step 4: Simplify right side
    8,807,356.40x = 37,312,310,782,990.32
  5. Step 5: Solve for x
    x = 37,312,310,782,990.32/8,807,356.40
  6. Step 6: Final answer
    x = 4,236,493.80

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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.