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Finding the Fourth Proportional to 6,962.70, 9,612.27 and 5,377.56

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Solution

The fourth proportional to 6,962.70, 9,612.27 and 5,377.56 is: 7,423.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,962.70 : 9,612.27 = 5,377.56 : x
  2. Step 2: Convert to fraction form
    6,962.70/9,612.27 = 5,377.56/x
  3. Step 3: Cross multiply
    6,962.70x = 9,612.27 × 5,377.56
  4. Step 4: Simplify right side
    6,962.70x = 51,690,502.45
  5. Step 5: Solve for x
    x = 51,690,502.45/6,962.70
  6. Step 6: Final answer
    x = 7,423.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.