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Finding the Fourth Proportional to 6,652,899.80, 9,984,015.30 and 4,262,557.40

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Solution

The fourth proportional to 6,652,899.80, 9,984,015.30 and 4,262,557.40 is: 6,396,825.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,652,899.80 : 9,984,015.30 = 4,262,557.40 : x
  2. Step 2: Convert to fraction form
    6,652,899.80/9,984,015.30 = 4,262,557.40/x
  3. Step 3: Cross multiply
    6,652,899.80x = 9,984,015.30 × 4,262,557.40
  4. Step 4: Simplify right side
    6,652,899.80x = 42,557,438,298,728.23
  5. Step 5: Solve for x
    x = 42,557,438,298,728.23/6,652,899.80
  6. Step 6: Final answer
    x = 6,396,825.38

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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.