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Finding the Fourth Proportional to 40,602.64, 61,129.62 and 35,177.52

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Solution

The fourth proportional to 40,602.64, 61,129.62 and 35,177.52 is: 52,961.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,602.64 : 61,129.62 = 35,177.52 : x
  2. Step 2: Convert to fraction form
    40,602.64/61,129.62 = 35,177.52/x
  3. Step 3: Cross multiply
    40,602.64x = 61,129.62 × 35,177.52
  4. Step 4: Simplify right side
    40,602.64x = 2,150,388,430.14
  5. Step 5: Solve for x
    x = 2,150,388,430.14/40,602.64
  6. Step 6: Final answer
    x = 52,961.79

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.