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Finding the Fourth Proportional to 51,626.80, 71,246.28 and 31,484.80

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Solution

The fourth proportional to 51,626.80, 71,246.28 and 31,484.80 is: 43,449.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,626.80 : 71,246.28 = 31,484.80 : x
  2. Step 2: Convert to fraction form
    51,626.80/71,246.28 = 31,484.80/x
  3. Step 3: Cross multiply
    51,626.80x = 71,246.28 × 31,484.80
  4. Step 4: Simplify right side
    51,626.80x = 2,243,174,876.54
  5. Step 5: Solve for x
    x = 2,243,174,876.54/51,626.80
  6. Step 6: Final answer
    x = 43,449.81

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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.