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Finding the Fourth Proportional to 37,170.40, 55,712.40 and 14,972.80

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Solution

The fourth proportional to 37,170.40, 55,712.40 and 14,972.80 is: 22,441.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,170.40 : 55,712.40 = 14,972.80 : x
  2. Step 2: Convert to fraction form
    37,170.40/55,712.40 = 14,972.80/x
  3. Step 3: Cross multiply
    37,170.40x = 55,712.40 × 14,972.80
  4. Step 4: Simplify right side
    37,170.40x = 834,170,622.72
  5. Step 5: Solve for x
    x = 834,170,622.72/37,170.40
  6. Step 6: Final answer
    x = 22,441.80

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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.