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Finding the Fourth Proportional to 20,666.01, 30,999.02 and 9,566.63

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Solution

The fourth proportional to 20,666.01, 30,999.02 and 9,566.63 is: 14,349.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,666.01 : 30,999.02 = 9,566.63 : x
  2. Step 2: Convert to fraction form
    20,666.01/30,999.02 = 9,566.63/x
  3. Step 3: Cross multiply
    20,666.01x = 30,999.02 × 9,566.63
  4. Step 4: Simplify right side
    20,666.01x = 296,556,154.70
  5. Step 5: Solve for x
    x = 296,556,154.70/20,666.01
  6. Step 6: Final answer
    x = 14,349.95

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Similar ratio
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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.