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Finding the Fourth Proportional to 18,475.46, 27,693.84 and 8,606.60

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Solution

The fourth proportional to 18,475.46, 27,693.84 and 8,606.60 is: 12,900.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,475.46 : 27,693.84 = 8,606.60 : x
  2. Step 2: Convert to fraction form
    18,475.46/27,693.84 = 8,606.60/x
  3. Step 3: Cross multiply
    18,475.46x = 27,693.84 × 8,606.60
  4. Step 4: Simplify right side
    18,475.46x = 238,349,803.34
  5. Step 5: Solve for x
    x = 238,349,803.34/18,475.46
  6. Step 6: Final answer
    x = 12,900.89

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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.