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Finding the Fourth Proportional to 61,377.78, 92,075.76 and 19,261.32

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Solution

The fourth proportional to 61,377.78, 92,075.76 and 19,261.32 is: 28,894.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,377.78 : 92,075.76 = 19,261.32 : x
  2. Step 2: Convert to fraction form
    61,377.78/92,075.76 = 19,261.32/x
  3. Step 3: Cross multiply
    61,377.78x = 92,075.76 × 19,261.32
  4. Step 4: Simplify right side
    61,377.78x = 1,773,500,677.60
  5. Step 5: Solve for x
    x = 1,773,500,677.60/61,377.78
  6. Step 6: Final answer
    x = 28,894.83

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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.