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Finding the Fourth Proportional to 30,496.55, 45,749.21 and 9,438.26

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Solution

The fourth proportional to 30,496.55, 45,749.21 and 9,438.26 is: 14,158.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,496.55 : 45,749.21 = 9,438.26 : x
  2. Step 2: Convert to fraction form
    30,496.55/45,749.21 = 9,438.26/x
  3. Step 3: Cross multiply
    30,496.55x = 45,749.21 × 9,438.26
  4. Step 4: Simplify right side
    30,496.55x = 431,792,662.84
  5. Step 5: Solve for x
    x = 431,792,662.84/30,496.55
  6. Step 6: Final answer
    x = 14,158.74

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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.