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Finding the Fourth Proportional to 3,358.70, 5,038.96 and 2,390.96

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Solution

The fourth proportional to 3,358.70, 5,038.96 and 2,390.96 is: 3,587.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,358.70 : 5,038.96 = 2,390.96 : x
  2. Step 2: Convert to fraction form
    3,358.70/5,038.96 = 2,390.96/x
  3. Step 3: Cross multiply
    3,358.70x = 5,038.96 × 2,390.96
  4. Step 4: Simplify right side
    3,358.70x = 12,047,951.80
  5. Step 5: Solve for x
    x = 12,047,951.80/3,358.70
  6. Step 6: Final answer
    x = 3,587.09

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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.