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Finding the Fourth Proportional to 56,572.26, 78,005.72 and 36,127.46

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Solution

The fourth proportional to 56,572.26, 78,005.72 and 36,127.46 is: 49,815.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,572.26 : 78,005.72 = 36,127.46 : x
  2. Step 2: Convert to fraction form
    56,572.26/78,005.72 = 36,127.46/x
  3. Step 3: Cross multiply
    56,572.26x = 78,005.72 × 36,127.46
  4. Step 4: Simplify right side
    56,572.26x = 2,818,147,958.41
  5. Step 5: Solve for x
    x = 2,818,147,958.41/56,572.26
  6. Step 6: Final answer
    x = 49,815.01

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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.