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Finding the Fourth Proportional to 3,416.79, 5,124.62 and 951.86

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Solution

The fourth proportional to 3,416.79, 5,124.62 and 951.86 is: 1,427.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,416.79 : 5,124.62 = 951.86 : x
  2. Step 2: Convert to fraction form
    3,416.79/5,124.62 = 951.86/x
  3. Step 3: Cross multiply
    3,416.79x = 5,124.62 × 951.86
  4. Step 4: Simplify right side
    3,416.79x = 4,877,920.79
  5. Step 5: Solve for x
    x = 4,877,920.79/3,416.79
  6. Step 6: Final answer
    x = 1,427.63

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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.