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Finding the Fourth Proportional to 48,381.75, 72,560.07 and 21,712.50

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Solution

The fourth proportional to 48,381.75, 72,560.07 and 21,712.50 is: 32,563.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,381.75 : 72,560.07 = 21,712.50 : x
  2. Step 2: Convert to fraction form
    48,381.75/72,560.07 = 21,712.50/x
  3. Step 3: Cross multiply
    48,381.75x = 72,560.07 × 21,712.50
  4. Step 4: Simplify right side
    48,381.75x = 1,575,460,519.88
  5. Step 5: Solve for x
    x = 1,575,460,519.88/48,381.75
  6. Step 6: Final answer
    x = 32,563.12

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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.