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Finding the Fourth Proportional to 20,554.28, 30,832.28 and 6,514.00

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Solution

The fourth proportional to 20,554.28, 30,832.28 and 6,514.00 is: 9,771.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,554.28 : 30,832.28 = 6,514.00 : x
  2. Step 2: Convert to fraction form
    20,554.28/30,832.28 = 6,514.00/x
  3. Step 3: Cross multiply
    20,554.28x = 30,832.28 × 6,514.00
  4. Step 4: Simplify right side
    20,554.28x = 200,841,423.34
  5. Step 5: Solve for x
    x = 200,841,423.34/20,554.28
  6. Step 6: Final answer
    x = 9,771.27

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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.