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Finding the Fourth Proportional to 9,903.59, 14,858.70 and 3,240.39

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Solution

The fourth proportional to 9,903.59, 14,858.70 and 3,240.39 is: 4,861.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,903.59 : 14,858.70 = 3,240.39 : x
  2. Step 2: Convert to fraction form
    9,903.59/14,858.70 = 3,240.39/x
  3. Step 3: Cross multiply
    9,903.59x = 14,858.70 × 3,240.39
  4. Step 4: Simplify right side
    9,903.59x = 48,147,982.89
  5. Step 5: Solve for x
    x = 48,147,982.89/9,903.59
  6. Step 6: Final answer
    x = 4,861.67

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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.