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Finding the Fourth Proportional to 61,925.51, 92,884.62 and 20,372.51

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Solution

The fourth proportional to 61,925.51, 92,884.62 and 20,372.51 is: 30,557.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,925.51 : 92,884.62 = 20,372.51 : x
  2. Step 2: Convert to fraction form
    61,925.51/92,884.62 = 20,372.51/x
  3. Step 3: Cross multiply
    61,925.51x = 92,884.62 × 20,372.51
  4. Step 4: Simplify right side
    61,925.51x = 1,892,292,849.80
  5. Step 5: Solve for x
    x = 1,892,292,849.80/61,925.51
  6. Step 6: Final answer
    x = 30,557.57

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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.