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Finding the Fourth Proportional to 6,805,905.63, 9,392,038.32 and 3,708,465.73

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Solution

The fourth proportional to 6,805,905.63, 9,392,038.32 and 3,708,465.73 is: 5,117,621.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,805,905.63 : 9,392,038.32 = 3,708,465.73 : x
  2. Step 2: Convert to fraction form
    6,805,905.63/9,392,038.32 = 3,708,465.73/x
  3. Step 3: Cross multiply
    6,805,905.63x = 9,392,038.32 × 3,708,465.73
  4. Step 4: Simplify right side
    6,805,905.63x = 34,830,052,234,993.43
  5. Step 5: Solve for x
    x = 34,830,052,234,993.43/6,805,905.63
  6. Step 6: Final answer
    x = 5,117,621.98

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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.