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Finding the Fourth Proportional to 61,660.73, 92,455.77 and 18,955.04

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Solution

The fourth proportional to 61,660.73, 92,455.77 and 18,955.04 is: 28,421.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,660.73 : 92,455.77 = 18,955.04 : x
  2. Step 2: Convert to fraction form
    61,660.73/92,455.77 = 18,955.04/x
  3. Step 3: Cross multiply
    61,660.73x = 92,455.77 × 18,955.04
  4. Step 4: Simplify right side
    61,660.73x = 1,752,502,818.58
  5. Step 5: Solve for x
    x = 1,752,502,818.58/61,660.73
  6. Step 6: Final answer
    x = 28,421.70

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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.