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Finding the Fourth Proportional to 48,478.30, 72,717.45 and 22,234.30

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Solution

The fourth proportional to 48,478.30, 72,717.45 and 22,234.30 is: 33,351.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,478.30 : 72,717.45 = 22,234.30 : x
  2. Step 2: Convert to fraction form
    48,478.30/72,717.45 = 22,234.30/x
  3. Step 3: Cross multiply
    48,478.30x = 72,717.45 × 22,234.30
  4. Step 4: Simplify right side
    48,478.30x = 1,616,821,598.54
  5. Step 5: Solve for x
    x = 1,616,821,598.54/48,478.30
  6. Step 6: Final answer
    x = 33,351.45

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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.