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Finding the Fourth Proportional to 53,645.72, 74,034.63 and 30,985.67

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Solution

The fourth proportional to 53,645.72, 74,034.63 and 30,985.67 is: 42,762.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,645.72 : 74,034.63 = 30,985.67 : x
  2. Step 2: Convert to fraction form
    53,645.72/74,034.63 = 30,985.67/x
  3. Step 3: Cross multiply
    53,645.72x = 74,034.63 × 30,985.67
  4. Step 4: Simplify right side
    53,645.72x = 2,294,012,613.75
  5. Step 5: Solve for x
    x = 2,294,012,613.75/53,645.72
  6. Step 6: Final answer
    x = 42,762.27

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