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Finding the Fourth Proportional to 48,665.97, 72,999.02 and 13,605.59

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Solution

The fourth proportional to 48,665.97, 72,999.02 and 13,605.59 is: 20,408.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,665.97 : 72,999.02 = 13,605.59 : x
  2. Step 2: Convert to fraction form
    48,665.97/72,999.02 = 13,605.59/x
  3. Step 3: Cross multiply
    48,665.97x = 72,999.02 × 13,605.59
  4. Step 4: Simplify right side
    48,665.97x = 993,194,953.03
  5. Step 5: Solve for x
    x = 993,194,953.03/48,665.97
  6. Step 6: Final answer
    x = 20,408.41

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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.