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Finding the Fourth Proportional to 15,871.95, 23,796.53 and 7,968.83

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Solution

The fourth proportional to 15,871.95, 23,796.53 and 7,968.83 is: 11,947.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,871.95 : 23,796.53 = 7,968.83 : x
  2. Step 2: Convert to fraction form
    15,871.95/23,796.53 = 7,968.83/x
  3. Step 3: Cross multiply
    15,871.95x = 23,796.53 × 7,968.83
  4. Step 4: Simplify right side
    15,871.95x = 189,630,551.90
  5. Step 5: Solve for x
    x = 189,630,551.90/15,871.95
  6. Step 6: Final answer
    x = 11,947.53

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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.