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Finding the Fourth Proportional to 8,618,966.66, 11,894,709.57 and 4,751,480.72

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Solution

The fourth proportional to 8,618,966.66, 11,894,709.57 and 4,751,480.72 is: 6,557,338.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,618,966.66 : 11,894,709.57 = 4,751,480.72 : x
  2. Step 2: Convert to fraction form
    8,618,966.66/11,894,709.57 = 4,751,480.72/x
  3. Step 3: Cross multiply
    8,618,966.66x = 11,894,709.57 × 4,751,480.72
  4. Step 4: Simplify right side
    8,618,966.66x = 56,517,483,203,773.21
  5. Step 5: Solve for x
    x = 56,517,483,203,773.21/8,618,966.66
  6. Step 6: Final answer
    x = 6,557,338.65

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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.