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Finding the Fourth Proportional to 48,267.92, 72,401.94 and 13,207.88

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Solution

The fourth proportional to 48,267.92, 72,401.94 and 13,207.88 is: 19,811.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,267.92 : 72,401.94 = 13,207.88 : x
  2. Step 2: Convert to fraction form
    48,267.92/72,401.94 = 13,207.88/x
  3. Step 3: Cross multiply
    48,267.92x = 72,401.94 × 13,207.88
  4. Step 4: Simplify right side
    48,267.92x = 956,276,135.29
  5. Step 5: Solve for x
    x = 956,276,135.29/48,267.92
  6. Step 6: Final answer
    x = 19,811.84

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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.