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Finding the Fourth Proportional to 6,707.90, 10,060.40 and 4,207.88

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Solution

The fourth proportional to 6,707.90, 10,060.40 and 4,207.88 is: 6,310.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,707.90 : 10,060.40 = 4,207.88 : x
  2. Step 2: Convert to fraction form
    6,707.90/10,060.40 = 4,207.88/x
  3. Step 3: Cross multiply
    6,707.90x = 10,060.40 × 4,207.88
  4. Step 4: Simplify right side
    6,707.90x = 42,332,916.17
  5. Step 5: Solve for x
    x = 42,332,916.17/6,707.90
  6. Step 6: Final answer
    x = 6,310.91

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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.