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Finding the Fourth Proportional to 30,659.61, 45,964.61 and 9,588.81

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Solution

The fourth proportional to 30,659.61, 45,964.61 and 9,588.81 is: 14,375.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,659.61 : 45,964.61 = 9,588.81 : x
  2. Step 2: Convert to fraction form
    30,659.61/45,964.61 = 9,588.81/x
  3. Step 3: Cross multiply
    30,659.61x = 45,964.61 × 9,588.81
  4. Step 4: Simplify right side
    30,659.61x = 440,745,912.01
  5. Step 5: Solve for x
    x = 440,745,912.01/30,659.61
  6. Step 6: Final answer
    x = 14,375.46

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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.