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Finding the Fourth Proportional to 48,334.20, 72,443.70 and 20,254.20

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Solution

The fourth proportional to 48,334.20, 72,443.70 and 20,254.20 is: 30,357.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,334.20 : 72,443.70 = 20,254.20 : x
  2. Step 2: Convert to fraction form
    48,334.20/72,443.70 = 20,254.20/x
  3. Step 3: Cross multiply
    48,334.20x = 72,443.70 × 20,254.20
  4. Step 4: Simplify right side
    48,334.20x = 1,467,289,188.54
  5. Step 5: Solve for x
    x = 1,467,289,188.54/48,334.20
  6. Step 6: Final answer
    x = 30,357.16

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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.