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Finding the Fourth Proportional to 7,302.80, 10,959.60 and 4,836.80

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Solution

The fourth proportional to 7,302.80, 10,959.60 and 4,836.80 is: 7,258.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,302.80 : 10,959.60 = 4,836.80 : x
  2. Step 2: Convert to fraction form
    7,302.80/10,959.60 = 4,836.80/x
  3. Step 3: Cross multiply
    7,302.80x = 10,959.60 × 4,836.80
  4. Step 4: Simplify right side
    7,302.80x = 53,009,393.28
  5. Step 5: Solve for x
    x = 53,009,393.28/7,302.80
  6. Step 6: Final answer
    x = 7,258.78

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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.