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Finding the Fourth Proportional to 15,972.60, 23,958.90 and 9,406.20

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Solution

The fourth proportional to 15,972.60, 23,958.90 and 9,406.20 is: 14,109.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,972.60 : 23,958.90 = 9,406.20 : x
  2. Step 2: Convert to fraction form
    15,972.60/23,958.90 = 9,406.20/x
  3. Step 3: Cross multiply
    15,972.60x = 23,958.90 × 9,406.20
  4. Step 4: Simplify right side
    15,972.60x = 225,362,205.18
  5. Step 5: Solve for x
    x = 225,362,205.18/15,972.60
  6. Step 6: Final answer
    x = 14,109.30

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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.