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Finding the Fourth Proportional to 20,667.01, 31,000.52 and 9,567.63

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Solution

The fourth proportional to 20,667.01, 31,000.52 and 9,567.63 is: 14,351.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,667.01 : 31,000.52 = 9,567.63 : x
  2. Step 2: Convert to fraction form
    20,667.01/31,000.52 = 9,567.63/x
  3. Step 3: Cross multiply
    20,667.01x = 31,000.52 × 9,567.63
  4. Step 4: Simplify right side
    20,667.01x = 296,601,505.17
  5. Step 5: Solve for x
    x = 296,601,505.17/20,667.01
  6. Step 6: Final answer
    x = 14,351.45

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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.