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Finding the Fourth Proportional to 61,380.88, 92,075.21 and 19,262.62

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Solution

The fourth proportional to 61,380.88, 92,075.21 and 19,262.62 is: 28,895.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,380.88 : 92,075.21 = 19,262.62 : x
  2. Step 2: Convert to fraction form
    61,380.88/92,075.21 = 19,262.62/x
  3. Step 3: Cross multiply
    61,380.88x = 92,075.21 × 19,262.62
  4. Step 4: Simplify right side
    61,380.88x = 1,773,609,872.67
  5. Step 5: Solve for x
    x = 1,773,609,872.67/61,380.88
  6. Step 6: Final answer
    x = 28,895.15

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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.