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Finding the Fourth Proportional to 4,903.40, 7,335.90 and 3,175.40

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Solution

The fourth proportional to 4,903.40, 7,335.90 and 3,175.40 is: 4,750.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,903.40 : 7,335.90 = 3,175.40 : x
  2. Step 2: Convert to fraction form
    4,903.40/7,335.90 = 3,175.40/x
  3. Step 3: Cross multiply
    4,903.40x = 7,335.90 × 3,175.40
  4. Step 4: Simplify right side
    4,903.40x = 23,294,416.86
  5. Step 5: Solve for x
    x = 23,294,416.86/4,903.40
  6. Step 6: Final answer
    x = 4,750.67

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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.