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Finding the Fourth Proportional to 32,669.94, 48,991.71 and 12,668.90

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Solution

The fourth proportional to 32,669.94, 48,991.71 and 12,668.90 is: 18,998.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,669.94 : 48,991.71 = 12,668.90 : x
  2. Step 2: Convert to fraction form
    32,669.94/48,991.71 = 12,668.90/x
  3. Step 3: Cross multiply
    32,669.94x = 48,991.71 × 12,668.90
  4. Step 4: Simplify right side
    32,669.94x = 620,671,061.09
  5. Step 5: Solve for x
    x = 620,671,061.09/32,669.94
  6. Step 6: Final answer
    x = 18,998.23

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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.