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Finding the Fourth Proportional to 48,095.20, 72,121.20 and 18,503.20

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Solution

The fourth proportional to 48,095.20, 72,121.20 and 18,503.20 is: 27,746.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,095.20 : 72,121.20 = 18,503.20 : x
  2. Step 2: Convert to fraction form
    48,095.20/72,121.20 = 18,503.20/x
  3. Step 3: Cross multiply
    48,095.20x = 72,121.20 × 18,503.20
  4. Step 4: Simplify right side
    48,095.20x = 1,334,472,987.84
  5. Step 5: Solve for x
    x = 1,334,472,987.84/48,095.20
  6. Step 6: Final answer
    x = 27,746.49

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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.