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Finding the Fourth Proportional to 35,187.51, 52,773.97 and 12,985.71

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Solution

The fourth proportional to 35,187.51, 52,773.97 and 12,985.71 is: 19,475.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,187.51 : 52,773.97 = 12,985.71 : x
  2. Step 2: Convert to fraction form
    35,187.51/52,773.97 = 12,985.71/x
  3. Step 3: Cross multiply
    35,187.51x = 52,773.97 × 12,985.71
  4. Step 4: Simplify right side
    35,187.51x = 685,307,469.97
  5. Step 5: Solve for x
    x = 685,307,469.97/35,187.51
  6. Step 6: Final answer
    x = 19,475.87

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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.