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Finding the Fourth Proportional to 9,277.97, 12,800.39 and 5,244.30

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Solution

The fourth proportional to 9,277.97, 12,800.39 and 5,244.30 is: 7,235.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,277.97 : 12,800.39 = 5,244.30 : x
  2. Step 2: Convert to fraction form
    9,277.97/12,800.39 = 5,244.30/x
  3. Step 3: Cross multiply
    9,277.97x = 12,800.39 × 5,244.30
  4. Step 4: Simplify right side
    9,277.97x = 67,129,059.06
  5. Step 5: Solve for x
    x = 67,129,059.06/9,277.97
  6. Step 6: Final answer
    x = 7,235.32

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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.