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Finding the Fourth Proportional to 61,428.48, 84,770.40 and 35,952.36

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Solution

The fourth proportional to 61,428.48, 84,770.40 and 35,952.36 is: 49,613.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,428.48 : 84,770.40 = 35,952.36 : x
  2. Step 2: Convert to fraction form
    61,428.48/84,770.40 = 35,952.36/x
  3. Step 3: Cross multiply
    61,428.48x = 84,770.40 × 35,952.36
  4. Step 4: Simplify right side
    61,428.48x = 3,047,695,938.14
  5. Step 5: Solve for x
    x = 3,047,695,938.14/61,428.48
  6. Step 6: Final answer
    x = 49,613.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.