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Finding the Fourth Proportional to 18,434.78, 27,652.16 and 4,583.78

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Solution

The fourth proportional to 18,434.78, 27,652.16 and 4,583.78 is: 6,875.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,434.78 : 27,652.16 = 4,583.78 : x
  2. Step 2: Convert to fraction form
    18,434.78/27,652.16 = 4,583.78/x
  3. Step 3: Cross multiply
    18,434.78x = 27,652.16 × 4,583.78
  4. Step 4: Simplify right side
    18,434.78x = 126,751,417.96
  5. Step 5: Solve for x
    x = 126,751,417.96/18,434.78
  6. Step 6: Final answer
    x = 6,875.67

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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.