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Finding the Fourth Proportional to 29,360.40, 44,040.20 and 9,639.60

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Solution

The fourth proportional to 29,360.40, 44,040.20 and 9,639.60 is: 14,459.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,360.40 : 44,040.20 = 9,639.60 : x
  2. Step 2: Convert to fraction form
    29,360.40/44,040.20 = 9,639.60/x
  3. Step 3: Cross multiply
    29,360.40x = 44,040.20 × 9,639.60
  4. Step 4: Simplify right side
    29,360.40x = 424,529,911.92
  5. Step 5: Solve for x
    x = 424,529,911.92/29,360.40
  6. Step 6: Final answer
    x = 14,459.27

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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.