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Finding the Fourth Proportional to 3,416.70, 5,124.78 and 951.36

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Solution

The fourth proportional to 3,416.70, 5,124.78 and 951.36 is: 1,426.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,416.70 : 5,124.78 = 951.36 : x
  2. Step 2: Convert to fraction form
    3,416.70/5,124.78 = 951.36/x
  3. Step 3: Cross multiply
    3,416.70x = 5,124.78 × 951.36
  4. Step 4: Simplify right side
    3,416.70x = 4,875,510.70
  5. Step 5: Solve for x
    x = 4,875,510.70/3,416.70
  6. Step 6: Final answer
    x = 1,426.96

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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.