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Finding the Fourth Proportional to 7,079.99, 9,770.63 and 3,893.41

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Solution

The fourth proportional to 7,079.99, 9,770.63 and 3,893.41 is: 5,373.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,079.99 : 9,770.63 = 3,893.41 : x
  2. Step 2: Convert to fraction form
    7,079.99/9,770.63 = 3,893.41/x
  3. Step 3: Cross multiply
    7,079.99x = 9,770.63 × 3,893.41
  4. Step 4: Simplify right side
    7,079.99x = 38,041,061.29
  5. Step 5: Solve for x
    x = 38,041,061.29/7,079.99
  6. Step 6: Final answer
    x = 5,373.04

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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.