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Finding the Fourth Proportional to 18,346.56, 27,503.40 and 6,657.12

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Solution

The fourth proportional to 18,346.56, 27,503.40 and 6,657.12 is: 9,979.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,346.56 : 27,503.40 = 6,657.12 : x
  2. Step 2: Convert to fraction form
    18,346.56/27,503.40 = 6,657.12/x
  3. Step 3: Cross multiply
    18,346.56x = 27,503.40 × 6,657.12
  4. Step 4: Simplify right side
    18,346.56x = 183,093,434.21
  5. Step 5: Solve for x
    x = 183,093,434.21/18,346.56
  6. Step 6: Final answer
    x = 9,979.71

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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.