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Finding the Fourth Proportional to 14,903.98, 20,567.43 and 8,189.58

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Solution

The fourth proportional to 14,903.98, 20,567.43 and 8,189.58 is: 11,301.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,903.98 : 20,567.43 = 8,189.58 : x
  2. Step 2: Convert to fraction form
    14,903.98/20,567.43 = 8,189.58/x
  3. Step 3: Cross multiply
    14,903.98x = 20,567.43 × 8,189.58
  4. Step 4: Simplify right side
    14,903.98x = 168,438,613.38
  5. Step 5: Solve for x
    x = 168,438,613.38/14,903.98
  6. Step 6: Final answer
    x = 11,301.59

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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.