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Finding the Fourth Proportional to 37,321.40, 55,982.10 and 12,697.40

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Solution

The fourth proportional to 37,321.40, 55,982.10 and 12,697.40 is: 19,046.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,321.40 : 55,982.10 = 12,697.40 : x
  2. Step 2: Convert to fraction form
    37,321.40/55,982.10 = 12,697.40/x
  3. Step 3: Cross multiply
    37,321.40x = 55,982.10 × 12,697.40
  4. Step 4: Simplify right side
    37,321.40x = 710,827,116.54
  5. Step 5: Solve for x
    x = 710,827,116.54/37,321.40
  6. Step 6: Final answer
    x = 19,046.10

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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.