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Finding the Fourth Proportional to 61,410.36, 92,082.72 and 21,945.94

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Solution

The fourth proportional to 61,410.36, 92,082.72 and 21,945.94 is: 32,907.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,410.36 : 92,082.72 = 21,945.94 : x
  2. Step 2: Convert to fraction form
    61,410.36/92,082.72 = 21,945.94/x
  3. Step 3: Cross multiply
    61,410.36x = 92,082.72 × 21,945.94
  4. Step 4: Simplify right side
    61,410.36x = 2,020,841,848.16
  5. Step 5: Solve for x
    x = 2,020,841,848.16/61,410.36
  6. Step 6: Final answer
    x = 32,907.18

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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.