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Finding the Fourth Proportional to 2,007.74, 3,011.70 and 709.34

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Solution

The fourth proportional to 2,007.74, 3,011.70 and 709.34 is: 1,064.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,007.74 : 3,011.70 = 709.34 : x
  2. Step 2: Convert to fraction form
    2,007.74/3,011.70 = 709.34/x
  3. Step 3: Cross multiply
    2,007.74x = 3,011.70 × 709.34
  4. Step 4: Simplify right side
    2,007.74x = 2,136,319.28
  5. Step 5: Solve for x
    x = 2,136,319.28/2,007.74
  6. Step 6: Final answer
    x = 1,064.04

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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.