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Finding the Fourth Proportional to 9,517.60, 14,276.40 and 8,826.40

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Solution

The fourth proportional to 9,517.60, 14,276.40 and 8,826.40 is: 13,239.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,517.60 : 14,276.40 = 8,826.40 : x
  2. Step 2: Convert to fraction form
    9,517.60/14,276.40 = 8,826.40/x
  3. Step 3: Cross multiply
    9,517.60x = 14,276.40 × 8,826.40
  4. Step 4: Simplify right side
    9,517.60x = 126,009,216.96
  5. Step 5: Solve for x
    x = 126,009,216.96/9,517.60
  6. Step 6: Final answer
    x = 13,239.60

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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.