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Finding the Fourth Proportional to 15,771.73, 21,763.99 and 9,052.63

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Solution

The fourth proportional to 15,771.73, 21,763.99 and 9,052.63 is: 12,492.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,771.73 : 21,763.99 = 9,052.63 : x
  2. Step 2: Convert to fraction form
    15,771.73/21,763.99 = 9,052.63/x
  3. Step 3: Cross multiply
    15,771.73x = 21,763.99 × 9,052.63
  4. Step 4: Simplify right side
    15,771.73x = 197,021,348.79
  5. Step 5: Solve for x
    x = 197,021,348.79/15,771.73
  6. Step 6: Final answer
    x = 12,492.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.