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Finding the Fourth Proportional to 67,290.78, 92,860.82 and 37,075.40

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Solution

The fourth proportional to 67,290.78, 92,860.82 and 37,075.40 is: 51,163.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,290.78 : 92,860.82 = 37,075.40 : x
  2. Step 2: Convert to fraction form
    67,290.78/92,860.82 = 37,075.40/x
  3. Step 3: Cross multiply
    67,290.78x = 92,860.82 × 37,075.40
  4. Step 4: Simplify right side
    67,290.78x = 3,442,852,277.98
  5. Step 5: Solve for x
    x = 3,442,852,277.98/67,290.78
  6. Step 6: Final answer
    x = 51,163.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.