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Finding the Fourth Proportional to 48,347.82, 72,503.28 and 18,761.82

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Solution

The fourth proportional to 48,347.82, 72,503.28 and 18,761.82 is: 28,135.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,347.82 : 72,503.28 = 18,761.82 : x
  2. Step 2: Convert to fraction form
    48,347.82/72,503.28 = 18,761.82/x
  3. Step 3: Cross multiply
    48,347.82x = 72,503.28 × 18,761.82
  4. Step 4: Simplify right side
    48,347.82x = 1,360,293,488.77
  5. Step 5: Solve for x
    x = 1,360,293,488.77/48,347.82
  6. Step 6: Final answer
    x = 28,135.57

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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.