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Finding the Fourth Proportional to 37,200.60, 55,800.90 and 13,822.20

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Solution

The fourth proportional to 37,200.60, 55,800.90 and 13,822.20 is: 20,733.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    37,200.60 : 55,800.90 = 13,822.20 : x
  2. Step 2: Convert to fraction form
    37,200.60/55,800.90 = 13,822.20/x
  3. Step 3: Cross multiply
    37,200.60x = 55,800.90 × 13,822.20
  4. Step 4: Simplify right side
    37,200.60x = 771,291,199.98
  5. Step 5: Solve for x
    x = 771,291,199.98/37,200.60
  6. Step 6: Final answer
    x = 20,733.30

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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.