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Finding the Fourth Proportional to 86,592.80, 129,901.35 and 27,422.30

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Solution

The fourth proportional to 86,592.80, 129,901.35 and 27,422.30 is: 41,137.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,592.80 : 129,901.35 = 27,422.30 : x
  2. Step 2: Convert to fraction form
    86,592.80/129,901.35 = 27,422.30/x
  3. Step 3: Cross multiply
    86,592.80x = 129,901.35 × 27,422.30
  4. Step 4: Simplify right side
    86,592.80x = 3,562,193,790.11
  5. Step 5: Solve for x
    x = 3,562,193,790.11/86,592.80
  6. Step 6: Final answer
    x = 41,137.30

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1.5x scale

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.