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Finding the Fourth Proportional to 56,379.93, 84,465.50 and 28,267.17

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Solution

The fourth proportional to 56,379.93, 84,465.50 and 28,267.17 is: 42,348.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,379.93 : 84,465.50 = 28,267.17 : x
  2. Step 2: Convert to fraction form
    56,379.93/84,465.50 = 28,267.17/x
  3. Step 3: Cross multiply
    56,379.93x = 84,465.50 × 28,267.17
  4. Step 4: Simplify right side
    56,379.93x = 2,387,600,506.30
  5. Step 5: Solve for x
    x = 2,387,600,506.30/56,379.93
  6. Step 6: Final answer
    x = 42,348.41

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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.