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Finding the Fourth Proportional to 12,482.52, 18,728.64 and 5,914.23

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Solution

The fourth proportional to 12,482.52, 18,728.64 and 5,914.23 is: 8,873.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,482.52 : 18,728.64 = 5,914.23 : x
  2. Step 2: Convert to fraction form
    12,482.52/18,728.64 = 5,914.23/x
  3. Step 3: Cross multiply
    12,482.52x = 18,728.64 × 5,914.23
  4. Step 4: Simplify right side
    12,482.52x = 110,765,484.55
  5. Step 5: Solve for x
    x = 110,765,484.55/12,482.52
  6. Step 6: Final answer
    x = 8,873.65

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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.