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Finding the Fourth Proportional to 27,048.25, 40,605.78 and 12,830.32

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Solution

The fourth proportional to 27,048.25, 40,605.78 and 12,830.32 is: 19,261.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,048.25 : 40,605.78 = 12,830.32 : x
  2. Step 2: Convert to fraction form
    27,048.25/40,605.78 = 12,830.32/x
  3. Step 3: Cross multiply
    27,048.25x = 40,605.78 × 12,830.32
  4. Step 4: Simplify right side
    27,048.25x = 520,984,948.22
  5. Step 5: Solve for x
    x = 520,984,948.22/27,048.25
  6. Step 6: Final answer
    x = 19,261.32

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.