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Finding the Fourth Proportional to 56,092.76, 77,406.77 and 30,942.26

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Solution

The fourth proportional to 56,092.76, 77,406.77 and 30,942.26 is: 42,699.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,092.76 : 77,406.77 = 30,942.26 : x
  2. Step 2: Convert to fraction form
    56,092.76/77,406.77 = 30,942.26/x
  3. Step 3: Cross multiply
    56,092.76x = 77,406.77 × 30,942.26
  4. Step 4: Simplify right side
    56,092.76x = 2,395,139,861.36
  5. Step 5: Solve for x
    x = 2,395,139,861.36/56,092.76
  6. Step 6: Final answer
    x = 42,699.63

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1.5x scale

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.