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Finding the Fourth Proportional to 9,693.88, 13,339.08 and 9,404.84

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Solution

The fourth proportional to 9,693.88, 13,339.08 and 9,404.84 is: 12,941.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,693.88 : 13,339.08 = 9,404.84 : x
  2. Step 2: Convert to fraction form
    9,693.88/13,339.08 = 9,404.84/x
  3. Step 3: Cross multiply
    9,693.88x = 13,339.08 × 9,404.84
  4. Step 4: Simplify right side
    9,693.88x = 125,451,946.49
  5. Step 5: Solve for x
    x = 125,451,946.49/9,693.88
  6. Step 6: Final answer
    x = 12,941.36

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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.