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Finding the Fourth Proportional to 8,707,382.07, 12,016,194.95 and 4,787,204.90

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Solution

The fourth proportional to 8,707,382.07, 12,016,194.95 and 4,787,204.90 is: 6,606,346.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,707,382.07 : 12,016,194.95 = 4,787,204.90 : x
  2. Step 2: Convert to fraction form
    8,707,382.07/12,016,194.95 = 4,787,204.90/x
  3. Step 3: Cross multiply
    8,707,382.07x = 12,016,194.95 × 4,787,204.90
  4. Step 4: Simplify right side
    8,707,382.07x = 57,523,987,259,978.25
  5. Step 5: Solve for x
    x = 57,523,987,259,978.25/8,707,382.07
  6. Step 6: Final answer
    x = 6,606,346.98

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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.