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Finding the Fourth Proportional to 11,793.60, 16,276.95 and 7,080.48

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Solution

The fourth proportional to 11,793.60, 16,276.95 and 7,080.48 is: 9,772.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,793.60 : 16,276.95 = 7,080.48 : x
  2. Step 2: Convert to fraction form
    11,793.60/16,276.95 = 7,080.48/x
  3. Step 3: Cross multiply
    11,793.60x = 16,276.95 × 7,080.48
  4. Step 4: Simplify right side
    11,793.60x = 115,248,618.94
  5. Step 5: Solve for x
    x = 115,248,618.94/11,793.60
  6. Step 6: Final answer
    x = 9,772.13

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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.