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Finding the Fourth Proportional to 14,673.30, 21,971.07 and 8,821.86

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Solution

The fourth proportional to 14,673.30, 21,971.07 and 8,821.86 is: 13,209.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,673.30 : 21,971.07 = 8,821.86 : x
  2. Step 2: Convert to fraction form
    14,673.30/21,971.07 = 8,821.86/x
  3. Step 3: Cross multiply
    14,673.30x = 21,971.07 × 8,821.86
  4. Step 4: Simplify right side
    14,673.30x = 193,825,703.59
  5. Step 5: Solve for x
    x = 193,825,703.59/14,673.30
  6. Step 6: Final answer
    x = 13,209.41

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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.