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Finding the Fourth Proportional to 18,045.87, 27,068.79 and 4,900.17

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Solution

The fourth proportional to 18,045.87, 27,068.79 and 4,900.17 is: 7,350.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,045.87 : 27,068.79 = 4,900.17 : x
  2. Step 2: Convert to fraction form
    18,045.87/27,068.79 = 4,900.17/x
  3. Step 3: Cross multiply
    18,045.87x = 27,068.79 × 4,900.17
  4. Step 4: Simplify right side
    18,045.87x = 132,641,672.69
  5. Step 5: Solve for x
    x = 132,641,672.69/18,045.87
  6. Step 6: Final answer
    x = 7,350.25

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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.