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Finding the Fourth Proportional to 18,465.39, 27,701.53 and 5,984.30

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Solution

The fourth proportional to 18,465.39, 27,701.53 and 5,984.30 is: 8,977.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,465.39 : 27,701.53 = 5,984.30 : x
  2. Step 2: Convert to fraction form
    18,465.39/27,701.53 = 5,984.30/x
  3. Step 3: Cross multiply
    18,465.39x = 27,701.53 × 5,984.30
  4. Step 4: Simplify right side
    18,465.39x = 165,774,265.98
  5. Step 5: Solve for x
    x = 165,774,265.98/18,465.39
  6. Step 6: Final answer
    x = 8,977.57

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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.