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Finding the Fourth Proportional to 56,617.96, 84,862.86 and 28,493.32

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Solution

The fourth proportional to 56,617.96, 84,862.86 and 28,493.32 is: 42,707.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,617.96 : 84,862.86 = 28,493.32 : x
  2. Step 2: Convert to fraction form
    56,617.96/84,862.86 = 28,493.32/x
  3. Step 3: Cross multiply
    56,617.96x = 84,862.86 × 28,493.32
  4. Step 4: Simplify right side
    56,617.96x = 2,418,024,626.10
  5. Step 5: Solve for x
    x = 2,418,024,626.10/56,617.96
  6. Step 6: Final answer
    x = 42,707.73

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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.