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Finding the Fourth Proportional to 24,405.60, 36,632.40 and 12,728.16

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Solution

The fourth proportional to 24,405.60, 36,632.40 and 12,728.16 is: 19,104.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    24,405.60 : 36,632.40 = 12,728.16 : x
  2. Step 2: Convert to fraction form
    24,405.60/36,632.40 = 12,728.16/x
  3. Step 3: Cross multiply
    24,405.60x = 36,632.40 × 12,728.16
  4. Step 4: Simplify right side
    24,405.60x = 466,263,048.38
  5. Step 5: Solve for x
    x = 466,263,048.38/24,405.60
  6. Step 6: Final answer
    x = 19,104.76

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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.