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Finding the Fourth Proportional to 56,290.76, 77,668.53 and 33,625.32

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Solution

The fourth proportional to 56,290.76, 77,668.53 and 33,625.32 is: 46,395.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,290.76 : 77,668.53 = 33,625.32 : x
  2. Step 2: Convert to fraction form
    56,290.76/77,668.53 = 33,625.32/x
  3. Step 3: Cross multiply
    56,290.76x = 77,668.53 × 33,625.32
  4. Step 4: Simplify right side
    56,290.76x = 2,611,628,786.84
  5. Step 5: Solve for x
    x = 2,611,628,786.84/56,290.76
  6. Step 6: Final answer
    x = 46,395.34

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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.