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Finding the Fourth Proportional to 5,707.62, 7,876.74 and 3,349.74

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Solution

The fourth proportional to 5,707.62, 7,876.74 and 3,349.74 is: 4,622.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,707.62 : 7,876.74 = 3,349.74 : x
  2. Step 2: Convert to fraction form
    5,707.62/7,876.74 = 3,349.74/x
  3. Step 3: Cross multiply
    5,707.62x = 7,876.74 × 3,349.74
  4. Step 4: Simplify right side
    5,707.62x = 26,385,031.05
  5. Step 5: Solve for x
    x = 26,385,031.05/5,707.62
  6. Step 6: Final answer
    x = 4,622.77

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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.