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Finding the Fourth Proportional to 15,793.02, 21,796.74 and 9,826.60

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Solution

The fourth proportional to 15,793.02, 21,796.74 and 9,826.60 is: 13,562.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,793.02 : 21,796.74 = 9,826.60 : x
  2. Step 2: Convert to fraction form
    15,793.02/21,796.74 = 9,826.60/x
  3. Step 3: Cross multiply
    15,793.02x = 21,796.74 × 9,826.60
  4. Step 4: Simplify right side
    15,793.02x = 214,187,845.28
  5. Step 5: Solve for x
    x = 214,187,845.28/15,793.02
  6. Step 6: Final answer
    x = 13,562.18

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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.