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Finding the Fourth Proportional to 30,468.13, 42,048.16 and 17,040.63

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Solution

The fourth proportional to 30,468.13, 42,048.16 and 17,040.63 is: 23,517.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,468.13 : 42,048.16 = 17,040.63 : x
  2. Step 2: Convert to fraction form
    30,468.13/42,048.16 = 17,040.63/x
  3. Step 3: Cross multiply
    30,468.13x = 42,048.16 × 17,040.63
  4. Step 4: Simplify right side
    30,468.13x = 716,527,136.74
  5. Step 5: Solve for x
    x = 716,527,136.74/30,468.13
  6. Step 6: Final answer
    x = 23,517.27

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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.