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Finding the Fourth Proportional to 12,482.96, 18,723.20 and 3,248.96

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Solution

The fourth proportional to 12,482.96, 18,723.20 and 3,248.96 is: 4,873.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,482.96 : 18,723.20 = 3,248.96 : x
  2. Step 2: Convert to fraction form
    12,482.96/18,723.20 = 3,248.96/x
  3. Step 3: Cross multiply
    12,482.96x = 18,723.20 × 3,248.96
  4. Step 4: Simplify right side
    12,482.96x = 60,830,927.87
  5. Step 5: Solve for x
    x = 60,830,927.87/12,482.96
  6. Step 6: Final answer
    x = 4,873.12

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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.