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Finding the Fourth Proportional to 61,534.40, 84,938.56 and 36,048.96

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Solution

The fourth proportional to 61,534.40, 84,938.56 and 36,048.96 is: 49,759.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,534.40 : 84,938.56 = 36,048.96 : x
  2. Step 2: Convert to fraction form
    61,534.40/84,938.56 = 36,048.96/x
  3. Step 3: Cross multiply
    61,534.40x = 84,938.56 × 36,048.96
  4. Step 4: Simplify right side
    61,534.40x = 3,061,946,661.78
  5. Step 5: Solve for x
    x = 3,061,946,661.78/61,534.40
  6. Step 6: Final answer
    x = 49,759.92

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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.