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Finding the Fourth Proportional to 6,790.47, 9,373.14 and 4,276.79

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Solution

The fourth proportional to 6,790.47, 9,373.14 and 4,276.79 is: 5,903.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,790.47 : 9,373.14 = 4,276.79 : x
  2. Step 2: Convert to fraction form
    6,790.47/9,373.14 = 4,276.79/x
  3. Step 3: Cross multiply
    6,790.47x = 9,373.14 × 4,276.79
  4. Step 4: Simplify right side
    6,790.47x = 40,086,904.55
  5. Step 5: Solve for x
    x = 40,086,904.55/6,790.47
  6. Step 6: Final answer
    x = 5,903.41

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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.