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Finding the Fourth Proportional to 56,641.80, 84,963.10 and 17,199.38

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Solution

The fourth proportional to 56,641.80, 84,963.10 and 17,199.38 is: 25,799.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,641.80 : 84,963.10 = 17,199.38 : x
  2. Step 2: Convert to fraction form
    56,641.80/84,963.10 = 17,199.38/x
  3. Step 3: Cross multiply
    56,641.80x = 84,963.10 × 17,199.38
  4. Step 4: Simplify right side
    56,641.80x = 1,461,312,642.88
  5. Step 5: Solve for x
    x = 1,461,312,642.88/56,641.80
  6. Step 6: Final answer
    x = 25,799.19

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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.