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Finding the Fourth Proportional to 10,682.40, 16,023.60 and 10,077.60

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Solution

The fourth proportional to 10,682.40, 16,023.60 and 10,077.60 is: 15,116.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,682.40 : 16,023.60 = 10,077.60 : x
  2. Step 2: Convert to fraction form
    10,682.40/16,023.60 = 10,077.60/x
  3. Step 3: Cross multiply
    10,682.40x = 16,023.60 × 10,077.60
  4. Step 4: Simplify right side
    10,682.40x = 161,479,431.36
  5. Step 5: Solve for x
    x = 161,479,431.36/10,682.40
  6. Step 6: Final answer
    x = 15,116.40

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1.5x scale

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.