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Finding the Fourth Proportional to 37,808.20, 56,709.90 and 12,848.20

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Solution

The fourth proportional to 37,808.20, 56,709.90 and 12,848.20 is: 19,271.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,808.20 : 56,709.90 = 12,848.20 : x
  2. Step 2: Convert to fraction form
    37,808.20/56,709.90 = 12,848.20/x
  3. Step 3: Cross multiply
    37,808.20x = 56,709.90 × 12,848.20
  4. Step 4: Simplify right side
    37,808.20x = 728,620,137.18
  5. Step 5: Solve for x
    x = 728,620,137.18/37,808.20
  6. Step 6: Final answer
    x = 19,271.48

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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.