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Finding the Fourth Proportional to 16,405.92, 24,602.79 and 6,917.58

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Solution

The fourth proportional to 16,405.92, 24,602.79 and 6,917.58 is: 10,373.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,405.92 : 24,602.79 = 6,917.58 : x
  2. Step 2: Convert to fraction form
    16,405.92/24,602.79 = 6,917.58/x
  3. Step 3: Cross multiply
    16,405.92x = 24,602.79 × 6,917.58
  4. Step 4: Simplify right side
    16,405.92x = 170,191,768.05
  5. Step 5: Solve for x
    x = 170,191,768.05/16,405.92
  6. Step 6: Final answer
    x = 10,373.80

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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.