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Finding the Fourth Proportional to 6,503,805.86, 8,974,898.61 and 3,603,023.72

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Solution

The fourth proportional to 6,503,805.86, 8,974,898.61 and 3,603,023.72 is: 4,971,976.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,503,805.86 : 8,974,898.61 = 3,603,023.72 : x
  2. Step 2: Convert to fraction form
    6,503,805.86/8,974,898.61 = 3,603,023.72/x
  3. Step 3: Cross multiply
    6,503,805.86x = 8,974,898.61 × 3,603,023.72
  4. Step 4: Simplify right side
    6,503,805.86x = 32,336,772,576,425.03
  5. Step 5: Solve for x
    x = 32,336,772,576,425.03/6,503,805.86
  6. Step 6: Final answer
    x = 4,971,976.91

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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.