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Finding the Fourth Proportional to 4,902.70, 7,354.05 and 4,384.30

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Solution

The fourth proportional to 4,902.70, 7,354.05 and 4,384.30 is: 6,576.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,902.70 : 7,354.05 = 4,384.30 : x
  2. Step 2: Convert to fraction form
    4,902.70/7,354.05 = 4,384.30/x
  3. Step 3: Cross multiply
    4,902.70x = 7,354.05 × 4,384.30
  4. Step 4: Simplify right side
    4,902.70x = 32,242,361.42
  5. Step 5: Solve for x
    x = 32,242,361.42/4,902.70
  6. Step 6: Final answer
    x = 6,576.45

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Similar ratio
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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.