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Finding the Fourth Proportional to 56,253, 77,692.92 and 38,316.90

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Solution

The fourth proportional to 56,253, 77,692.92 and 38,316.90 is: 52,920.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,253 : 77,692.92 = 38,316.90 : x
  2. Step 2: Convert to fraction form
    56,253/77,692.92 = 38,316.90/x
  3. Step 3: Cross multiply
    56,253x = 77,692.92 × 38,316.90
  4. Step 4: Simplify right side
    56,253x = 2,976,951,846.35
  5. Step 5: Solve for x
    x = 2,976,951,846.35/56,253
  6. Step 6: Final answer
    x = 52,920.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.