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Finding the Fourth Proportional to 56,541.75, 84,851.51 and 19,605.75

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Solution

The fourth proportional to 56,541.75, 84,851.51 and 19,605.75 is: 29,422.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,541.75 : 84,851.51 = 19,605.75 : x
  2. Step 2: Convert to fraction form
    56,541.75/84,851.51 = 19,605.75/x
  3. Step 3: Cross multiply
    56,541.75x = 84,851.51 × 19,605.75
  4. Step 4: Simplify right side
    56,541.75x = 1,663,577,394.15
  5. Step 5: Solve for x
    x = 1,663,577,394.15/56,541.75
  6. Step 6: Final answer
    x = 29,422.11

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Why These Related Problems?

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