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Finding the Fourth Proportional to 32,646.75, 48,974.49 and 12,920.70

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Solution

The fourth proportional to 32,646.75, 48,974.49 and 12,920.70 is: 19,382.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,646.75 : 48,974.49 = 12,920.70 : x
  2. Step 2: Convert to fraction form
    32,646.75/48,974.49 = 12,920.70/x
  3. Step 3: Cross multiply
    32,646.75x = 48,974.49 × 12,920.70
  4. Step 4: Simplify right side
    32,646.75x = 632,784,383.47
  5. Step 5: Solve for x
    x = 632,784,383.47/32,646.75
  6. Step 6: Final answer
    x = 19,382.77

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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.