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Finding the Fourth Proportional to 18,577.99, 27,868.28 and 7,484.71

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Solution

The fourth proportional to 18,577.99, 27,868.28 and 7,484.71 is: 11,227.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,577.99 : 27,868.28 = 7,484.71 : x
  2. Step 2: Convert to fraction form
    18,577.99/27,868.28 = 7,484.71/x
  3. Step 3: Cross multiply
    18,577.99x = 27,868.28 × 7,484.71
  4. Step 4: Simplify right side
    18,577.99x = 208,585,994.00
  5. Step 5: Solve for x
    x = 208,585,994.00/18,577.99
  6. Step 6: Final answer
    x = 11,227.59

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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.