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Finding the Fourth Proportional to 48,552.54, 72,880.65 and 20,869.98

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Solution

The fourth proportional to 48,552.54, 72,880.65 and 20,869.98 is: 31,327.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,552.54 : 72,880.65 = 20,869.98 : x
  2. Step 2: Convert to fraction form
    48,552.54/72,880.65 = 20,869.98/x
  3. Step 3: Cross multiply
    48,552.54x = 72,880.65 × 20,869.98
  4. Step 4: Simplify right side
    48,552.54x = 1,521,017,707.89
  5. Step 5: Solve for x
    x = 1,521,017,707.89/48,552.54
  6. Step 6: Final answer
    x = 31,327.25

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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.