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Finding the Fourth Proportional to 61,935.04, 92,893.92 and 20,368

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Solution

The fourth proportional to 61,935.04, 92,893.92 and 20,368 is: 30,549.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,935.04 : 92,893.92 = 20,368 : x
  2. Step 2: Convert to fraction form
    61,935.04/92,893.92 = 20,368/x
  3. Step 3: Cross multiply
    61,935.04x = 92,893.92 × 20,368
  4. Step 4: Simplify right side
    61,935.04x = 1,892,063,362.56
  5. Step 5: Solve for x
    x = 1,892,063,362.56/61,935.04
  6. Step 6: Final answer
    x = 30,549.16

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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.