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Finding the Fourth Proportional to 32,172.87, 48,259.15 and 8,157.18

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Solution

The fourth proportional to 32,172.87, 48,259.15 and 8,157.18 is: 12,235.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,172.87 : 48,259.15 = 8,157.18 : x
  2. Step 2: Convert to fraction form
    32,172.87/48,259.15 = 8,157.18/x
  3. Step 3: Cross multiply
    32,172.87x = 48,259.15 × 8,157.18
  4. Step 4: Simplify right side
    32,172.87x = 393,658,573.20
  5. Step 5: Solve for x
    x = 393,658,573.20/32,172.87
  6. Step 6: Final answer
    x = 12,235.73

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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.