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Finding the Fourth Proportional to 61,761.60, 92,685.60 and 26,726.40

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Solution

The fourth proportional to 61,761.60, 92,685.60 and 26,726.40 is: 40,108.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,761.60 : 92,685.60 = 26,726.40 : x
  2. Step 2: Convert to fraction form
    61,761.60/92,685.60 = 26,726.40/x
  3. Step 3: Cross multiply
    61,761.60x = 92,685.60 × 26,726.40
  4. Step 4: Simplify right side
    61,761.60x = 2,477,152,419.84
  5. Step 5: Solve for x
    x = 2,477,152,419.84/61,761.60
  6. Step 6: Final answer
    x = 40,108.29

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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.