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Finding the Fourth Proportional to 91,674.32, 137,491.64 and 32,511.92

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Solution

The fourth proportional to 91,674.32, 137,491.64 and 32,511.92 is: 48,760.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,674.32 : 137,491.64 = 32,511.92 : x
  2. Step 2: Convert to fraction form
    91,674.32/137,491.64 = 32,511.92/x
  3. Step 3: Cross multiply
    91,674.32x = 137,491.64 × 32,511.92
  4. Step 4: Simplify right side
    91,674.32x = 4,470,117,200.35
  5. Step 5: Solve for x
    x = 4,470,117,200.35/91,674.32
  6. Step 6: Final answer
    x = 48,760.84

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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.