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Finding the Fourth Proportional to 56,321.73, 77,718.72 and 33,656.22

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Solution

The fourth proportional to 56,321.73, 77,718.72 and 33,656.22 is: 46,442.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,321.73 : 77,718.72 = 33,656.22 : x
  2. Step 2: Convert to fraction form
    56,321.73/77,718.72 = 33,656.22/x
  3. Step 3: Cross multiply
    56,321.73x = 77,718.72 × 33,656.22
  4. Step 4: Simplify right side
    56,321.73x = 2,615,718,338.44
  5. Step 5: Solve for x
    x = 2,615,718,338.44/56,321.73
  6. Step 6: Final answer
    x = 46,442.44

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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.