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Finding the Fourth Proportional to 27,236.64, 40,817.16 and 12,409.32

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Solution

The fourth proportional to 27,236.64, 40,817.16 and 12,409.32 is: 18,596.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,236.64 : 40,817.16 = 12,409.32 : x
  2. Step 2: Convert to fraction form
    27,236.64/40,817.16 = 12,409.32/x
  3. Step 3: Cross multiply
    27,236.64x = 40,817.16 × 12,409.32
  4. Step 4: Simplify right side
    27,236.64x = 506,513,199.93
  5. Step 5: Solve for x
    x = 506,513,199.93/27,236.64
  6. Step 6: Final answer
    x = 18,596.76

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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.