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Finding the Fourth Proportional to 7,200,763.92, 9,932,372.01 and 4,618,354.32

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Solution

The fourth proportional to 7,200,763.92, 9,932,372.01 and 4,618,354.32 is: 6,370,325.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,200,763.92 : 9,932,372.01 = 4,618,354.32 : x
  2. Step 2: Convert to fraction form
    7,200,763.92/9,932,372.01 = 4,618,354.32/x
  3. Step 3: Cross multiply
    7,200,763.92x = 9,932,372.01 × 4,618,354.32
  4. Step 4: Simplify right side
    7,200,763.92x = 45,871,213,180,230.59
  5. Step 5: Solve for x
    x = 45,871,213,180,230.59/7,200,763.92
  6. Step 6: Final answer
    x = 6,370,325.94

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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.