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Finding the Fourth Proportional to 56,754.86, 85,184.76 and 28,694.66

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Solution

The fourth proportional to 56,754.86, 85,184.76 and 28,694.66 is: 43,068.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,754.86 : 85,184.76 = 28,694.66 : x
  2. Step 2: Convert to fraction form
    56,754.86/85,184.76 = 28,694.66/x
  3. Step 3: Cross multiply
    56,754.86x = 85,184.76 × 28,694.66
  4. Step 4: Simplify right side
    56,754.86x = 2,444,347,725.38
  5. Step 5: Solve for x
    x = 2,444,347,725.38/56,754.86
  6. Step 6: Final answer
    x = 43,068.52

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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.