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Finding the Fourth Proportional to 18,374.55, 27,559.99 and 5,903.58

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Solution

The fourth proportional to 18,374.55, 27,559.99 and 5,903.58 is: 8,854.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,374.55 : 27,559.99 = 5,903.58 : x
  2. Step 2: Convert to fraction form
    18,374.55/27,559.99 = 5,903.58/x
  3. Step 3: Cross multiply
    18,374.55x = 27,559.99 × 5,903.58
  4. Step 4: Simplify right side
    18,374.55x = 162,702,605.76
  5. Step 5: Solve for x
    x = 162,702,605.76/18,374.55
  6. Step 6: Final answer
    x = 8,854.78

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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.