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Finding the Fourth Proportional to 18,125.70, 27,166.95 and 7,595.70

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Solution

The fourth proportional to 18,125.70, 27,166.95 and 7,595.70 is: 11,384.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,125.70 : 27,166.95 = 7,595.70 : x
  2. Step 2: Convert to fraction form
    18,125.70/27,166.95 = 7,595.70/x
  3. Step 3: Cross multiply
    18,125.70x = 27,166.95 × 7,595.70
  4. Step 4: Simplify right side
    18,125.70x = 206,352,002.12
  5. Step 5: Solve for x
    x = 206,352,002.12/18,125.70
  6. Step 6: Final answer
    x = 11,384.50

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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.