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Finding the Fourth Proportional to 61,818.55, 92,726.81 and 19,698.06

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Solution

The fourth proportional to 61,818.55, 92,726.81 and 19,698.06 is: 29,546.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,818.55 : 92,726.81 = 19,698.06 : x
  2. Step 2: Convert to fraction form
    61,818.55/92,726.81 = 19,698.06/x
  3. Step 3: Cross multiply
    61,818.55x = 92,726.81 × 19,698.06
  4. Step 4: Simplify right side
    61,818.55x = 1,826,538,590.09
  5. Step 5: Solve for x
    x = 1,826,538,590.09/61,818.55
  6. Step 6: Final answer
    x = 29,546.77

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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.