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Finding the Fourth Proportional to 56,935.22, 85,411.95 and 28,843.90

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Solution

The fourth proportional to 56,935.22, 85,411.95 and 28,843.90 is: 43,270.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,935.22 : 85,411.95 = 28,843.90 : x
  2. Step 2: Convert to fraction form
    56,935.22/85,411.95 = 28,843.90/x
  3. Step 3: Cross multiply
    56,935.22x = 85,411.95 × 28,843.90
  4. Step 4: Simplify right side
    56,935.22x = 2,463,613,585.16
  5. Step 5: Solve for x
    x = 2,463,613,585.16/56,935.22
  6. Step 6: Final answer
    x = 43,270.47

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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.