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Finding the Fourth Proportional to 18,615.59, 27,923.33 and 7,522.15

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Solution

The fourth proportional to 18,615.59, 27,923.33 and 7,522.15 is: 11,283.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,615.59 : 27,923.33 = 7,522.15 : x
  2. Step 2: Convert to fraction form
    18,615.59/27,923.33 = 7,522.15/x
  3. Step 3: Cross multiply
    18,615.59x = 27,923.33 × 7,522.15
  4. Step 4: Simplify right side
    18,615.59x = 210,043,476.76
  5. Step 5: Solve for x
    x = 210,043,476.76/18,615.59
  6. Step 6: Final answer
    x = 11,283.20

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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.