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Finding the Fourth Proportional to 48,578.58, 66,601.49 and 47,692.98

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Solution

The fourth proportional to 48,578.58, 66,601.49 and 47,692.98 is: 65,387.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,578.58 : 66,601.49 = 47,692.98 : x
  2. Step 2: Convert to fraction form
    48,578.58/66,601.49 = 47,692.98/x
  3. Step 3: Cross multiply
    48,578.58x = 66,601.49 × 47,692.98
  4. Step 4: Simplify right side
    48,578.58x = 3,176,423,292.08
  5. Step 5: Solve for x
    x = 3,176,423,292.08/48,578.58
  6. Step 6: Final answer
    x = 65,387.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.