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Finding the Fourth Proportional to 9,596.40, 13,242.04 and 8,890.88

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Solution

The fourth proportional to 9,596.40, 13,242.04 and 8,890.88 is: 12,268.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,596.40 : 13,242.04 = 8,890.88 : x
  2. Step 2: Convert to fraction form
    9,596.40/13,242.04 = 8,890.88/x
  3. Step 3: Cross multiply
    9,596.40x = 13,242.04 × 8,890.88
  4. Step 4: Simplify right side
    9,596.40x = 117,733,388.60
  5. Step 5: Solve for x
    x = 117,733,388.60/9,596.40
  6. Step 6: Final answer
    x = 12,268.50

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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.