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Finding the Fourth Proportional to 7,302.76, 10,954.40 and 2,860.28

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Solution

The fourth proportional to 7,302.76, 10,954.40 and 2,860.28 is: 4,290.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,302.76 : 10,954.40 = 2,860.28 : x
  2. Step 2: Convert to fraction form
    7,302.76/10,954.40 = 2,860.28/x
  3. Step 3: Cross multiply
    7,302.76x = 10,954.40 × 2,860.28
  4. Step 4: Simplify right side
    7,302.76x = 31,332,651.23
  5. Step 5: Solve for x
    x = 31,332,651.23/7,302.76
  6. Step 6: Final answer
    x = 4,290.52

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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.