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Finding the Fourth Proportional to 7,136.86, 10,705.30 and 6,703.34

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Solution

The fourth proportional to 7,136.86, 10,705.30 and 6,703.34 is: 10,055.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,136.86 : 10,705.30 = 6,703.34 : x
  2. Step 2: Convert to fraction form
    7,136.86/10,705.30 = 6,703.34/x
  3. Step 3: Cross multiply
    7,136.86x = 10,705.30 × 6,703.34
  4. Step 4: Simplify right side
    7,136.86x = 71,761,255.63
  5. Step 5: Solve for x
    x = 71,761,255.63/7,136.86
  6. Step 6: Final answer
    x = 10,055.02

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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.