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Finding the Fourth Proportional to 9,473.40, 13,086.90 and 9,084.60

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Solution

The fourth proportional to 9,473.40, 13,086.90 and 9,084.60 is: 12,549.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,473.40 : 13,086.90 = 9,084.60 : x
  2. Step 2: Convert to fraction form
    9,473.40/13,086.90 = 9,084.60/x
  3. Step 3: Cross multiply
    9,473.40x = 13,086.90 × 9,084.60
  4. Step 4: Simplify right side
    9,473.40x = 118,889,251.74
  5. Step 5: Solve for x
    x = 118,889,251.74/9,473.40
  6. Step 6: Final answer
    x = 12,549.80

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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.