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Finding the Fourth Proportional to 6,984,168.08, 9,638,082.12 and 3,886,638.44

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Solution

The fourth proportional to 6,984,168.08, 9,638,082.12 and 3,886,638.44 is: 5,363,522.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,984,168.08 : 9,638,082.12 = 3,886,638.44 : x
  2. Step 2: Convert to fraction form
    6,984,168.08/9,638,082.12 = 3,886,638.44/x
  3. Step 3: Cross multiply
    6,984,168.08x = 9,638,082.12 × 3,886,638.44
  4. Step 4: Simplify right side
    6,984,168.08x = 37,459,740,455,468.69
  5. Step 5: Solve for x
    x = 37,459,740,455,468.69/6,984,168.08
  6. Step 6: Final answer
    x = 5,363,522.19

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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.