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Finding the Fourth Proportional to 6,466.88, 9,700.38 and 4,160

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Solution

The fourth proportional to 6,466.88, 9,700.38 and 4,160 is: 6,240.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,466.88 : 9,700.38 = 4,160 : x
  2. Step 2: Convert to fraction form
    6,466.88/9,700.38 = 4,160/x
  3. Step 3: Cross multiply
    6,466.88x = 9,700.38 × 4,160
  4. Step 4: Simplify right side
    6,466.88x = 40,353,580.80
  5. Step 5: Solve for x
    x = 40,353,580.80/6,466.88
  6. Step 6: Final answer
    x = 6,240.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.