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Finding the Fourth Proportional to 51,374.21, 77,060.95 and 26,421.21

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Solution

The fourth proportional to 51,374.21, 77,060.95 and 26,421.21 is: 39,631.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,374.21 : 77,060.95 = 26,421.21 : x
  2. Step 2: Convert to fraction form
    51,374.21/77,060.95 = 26,421.21/x
  3. Step 3: Cross multiply
    51,374.21x = 77,060.95 × 26,421.21
  4. Step 4: Simplify right side
    51,374.21x = 2,036,043,476.70
  5. Step 5: Solve for x
    x = 2,036,043,476.70/51,374.21
  6. Step 6: Final answer
    x = 39,631.63

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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.