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Finding the Fourth Proportional to 18,092.70, 27,139.05 and 4,946.40

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Solution

The fourth proportional to 18,092.70, 27,139.05 and 4,946.40 is: 7,419.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,092.70 : 27,139.05 = 4,946.40 : x
  2. Step 2: Convert to fraction form
    18,092.70/27,139.05 = 4,946.40/x
  3. Step 3: Cross multiply
    18,092.70x = 27,139.05 × 4,946.40
  4. Step 4: Simplify right side
    18,092.70x = 134,240,596.92
  5. Step 5: Solve for x
    x = 134,240,596.92/18,092.70
  6. Step 6: Final answer
    x = 7,419.60

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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.