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Finding the Fourth Proportional to 14,713.30, 20,304.75 and 7,999.38

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Solution

The fourth proportional to 14,713.30, 20,304.75 and 7,999.38 is: 11,039.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,713.30 : 20,304.75 = 7,999.38 : x
  2. Step 2: Convert to fraction form
    14,713.30/20,304.75 = 7,999.38/x
  3. Step 3: Cross multiply
    14,713.30x = 20,304.75 × 7,999.38
  4. Step 4: Simplify right side
    14,713.30x = 162,425,402.98
  5. Step 5: Solve for x
    x = 162,425,402.98/14,713.30
  6. Step 6: Final answer
    x = 11,039.36

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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.