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Finding the Fourth Proportional to 6,706.80, 10,060.20 and 6,663.60

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Solution

The fourth proportional to 6,706.80, 10,060.20 and 6,663.60 is: 9,995.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,706.80 : 10,060.20 = 6,663.60 : x
  2. Step 2: Convert to fraction form
    6,706.80/10,060.20 = 6,663.60/x
  3. Step 3: Cross multiply
    6,706.80x = 10,060.20 × 6,663.60
  4. Step 4: Simplify right side
    6,706.80x = 67,037,148.72
  5. Step 5: Solve for x
    x = 67,037,148.72/6,706.80
  6. Step 6: Final answer
    x = 9,995.40

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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.