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Finding the Fourth Proportional to 31,669.03, 47,490.18 and 9,485.56

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Solution

The fourth proportional to 31,669.03, 47,490.18 and 9,485.56 is: 14,224.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,669.03 : 47,490.18 = 9,485.56 : x
  2. Step 2: Convert to fraction form
    31,669.03/47,490.18 = 9,485.56/x
  3. Step 3: Cross multiply
    31,669.03x = 47,490.18 × 9,485.56
  4. Step 4: Simplify right side
    31,669.03x = 450,470,951.80
  5. Step 5: Solve for x
    x = 450,470,951.80/31,669.03
  6. Step 6: Final answer
    x = 14,224.34

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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.