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Finding the Fourth Proportional to 18,358.56, 27,537.60 and 4,507.68

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Solution

The fourth proportional to 18,358.56, 27,537.60 and 4,507.68 is: 6,761.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,358.56 : 27,537.60 = 4,507.68 : x
  2. Step 2: Convert to fraction form
    18,358.56/27,537.60 = 4,507.68/x
  3. Step 3: Cross multiply
    18,358.56x = 27,537.60 × 4,507.68
  4. Step 4: Simplify right side
    18,358.56x = 124,130,688.77
  5. Step 5: Solve for x
    x = 124,130,688.77/18,358.56
  6. Step 6: Final answer
    x = 6,761.46

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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.