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Finding the Fourth Proportional to 86,015.10, 129,022.65 and 22,835.10

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Solution

The fourth proportional to 86,015.10, 129,022.65 and 22,835.10 is: 34,252.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,015.10 : 129,022.65 = 22,835.10 : x
  2. Step 2: Convert to fraction form
    86,015.10/129,022.65 = 22,835.10/x
  3. Step 3: Cross multiply
    86,015.10x = 129,022.65 × 22,835.10
  4. Step 4: Simplify right side
    86,015.10x = 2,946,245,115.02
  5. Step 5: Solve for x
    x = 2,946,245,115.02/86,015.10
  6. Step 6: Final answer
    x = 34,252.65

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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.