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Finding the Fourth Proportional to 37,311.60, 55,918.80 and 15,106.80

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Solution

The fourth proportional to 37,311.60, 55,918.80 and 15,106.80 is: 22,640.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,311.60 : 55,918.80 = 15,106.80 : x
  2. Step 2: Convert to fraction form
    37,311.60/55,918.80 = 15,106.80/x
  3. Step 3: Cross multiply
    37,311.60x = 55,918.80 × 15,106.80
  4. Step 4: Simplify right side
    37,311.60x = 844,754,127.84
  5. Step 5: Solve for x
    x = 844,754,127.84/37,311.60
  6. Step 6: Final answer
    x = 22,640.52

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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.