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Finding the Fourth Proportional to 37,648.36, 51,956.58 and 20,881

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Solution

The fourth proportional to 37,648.36, 51,956.58 and 20,881 is: 28,816.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,648.36 : 51,956.58 = 20,881 : x
  2. Step 2: Convert to fraction form
    37,648.36/51,956.58 = 20,881/x
  3. Step 3: Cross multiply
    37,648.36x = 51,956.58 × 20,881
  4. Step 4: Simplify right side
    37,648.36x = 1,084,905,346.98
  5. Step 5: Solve for x
    x = 1,084,905,346.98/37,648.36
  6. Step 6: Final answer
    x = 28,816.80

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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.