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Finding the Fourth Proportional to 80,857.70, 111,583.88 and 48,592.90

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Solution

The fourth proportional to 80,857.70, 111,583.88 and 48,592.90 is: 67,058.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,857.70 : 111,583.88 = 48,592.90 : x
  2. Step 2: Convert to fraction form
    80,857.70/111,583.88 = 48,592.90/x
  3. Step 3: Cross multiply
    80,857.70x = 111,583.88 × 48,592.90
  4. Step 4: Simplify right side
    80,857.70x = 5,422,184,322.45
  5. Step 5: Solve for x
    x = 5,422,184,322.45/80,857.70
  6. Step 6: Final answer
    x = 67,058.35

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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.