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Finding the Fourth Proportional to 16,665.60, 24,998.40 and 16,406.40

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Solution

The fourth proportional to 16,665.60, 24,998.40 and 16,406.40 is: 24,609.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,665.60 : 24,998.40 = 16,406.40 : x
  2. Step 2: Convert to fraction form
    16,665.60/24,998.40 = 16,406.40/x
  3. Step 3: Cross multiply
    16,665.60x = 24,998.40 × 16,406.40
  4. Step 4: Simplify right side
    16,665.60x = 410,133,749.76
  5. Step 5: Solve for x
    x = 410,133,749.76/16,665.60
  6. Step 6: Final answer
    x = 24,609.60

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Similar ratio
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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.