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Finding the Fourth Proportional to 40,602.69, 56,030.34 and 28,520.67

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Solution

The fourth proportional to 40,602.69, 56,030.34 and 28,520.67 is: 39,357.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,602.69 : 56,030.34 = 28,520.67 : x
  2. Step 2: Convert to fraction form
    40,602.69/56,030.34 = 28,520.67/x
  3. Step 3: Cross multiply
    40,602.69x = 56,030.34 × 28,520.67
  4. Step 4: Simplify right side
    40,602.69x = 1,598,022,837.13
  5. Step 5: Solve for x
    x = 1,598,022,837.13/40,602.69
  6. Step 6: Final answer
    x = 39,357.56

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.