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Finding the Fourth Proportional to 6,247,809.50, 8,619,433.48 and 4,071,559.82

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Solution

The fourth proportional to 6,247,809.50, 8,619,433.48 and 4,071,559.82 is: 5,617,094.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,247,809.50 : 8,619,433.48 = 4,071,559.82 : x
  2. Step 2: Convert to fraction form
    6,247,809.50/8,619,433.48 = 4,071,559.82/x
  3. Step 3: Cross multiply
    6,247,809.50x = 8,619,433.48 × 4,071,559.82
  4. Step 4: Simplify right side
    6,247,809.50x = 35,094,539,050,258.32
  5. Step 5: Solve for x
    x = 35,094,539,050,258.32/6,247,809.50
  6. Step 6: Final answer
    x = 5,617,094.93

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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.