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Finding the Fourth Proportional to 37,803.20, 56,702.40 and 12,843.20

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Solution

The fourth proportional to 37,803.20, 56,702.40 and 12,843.20 is: 19,263.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,803.20 : 56,702.40 = 12,843.20 : x
  2. Step 2: Convert to fraction form
    37,803.20/56,702.40 = 12,843.20/x
  3. Step 3: Cross multiply
    37,803.20x = 56,702.40 × 12,843.20
  4. Step 4: Simplify right side
    37,803.20x = 728,240,263.68
  5. Step 5: Solve for x
    x = 728,240,263.68/37,803.20
  6. Step 6: Final answer
    x = 19,263.98

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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.