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Finding the Fourth Proportional to 6,984.52, 9,638.70 and 4,294.96

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Solution

The fourth proportional to 6,984.52, 9,638.70 and 4,294.96 is: 5,927.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,984.52 : 9,638.70 = 4,294.96 : x
  2. Step 2: Convert to fraction form
    6,984.52/9,638.70 = 4,294.96/x
  3. Step 3: Cross multiply
    6,984.52x = 9,638.70 × 4,294.96
  4. Step 4: Simplify right side
    6,984.52x = 41,397,830.95
  5. Step 5: Solve for x
    x = 41,397,830.95/6,984.52
  6. Step 6: Final answer
    x = 5,927.08

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1.5x scale

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.