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Finding the Fourth Proportional to 7,282.80, 10,926.72 and 2,602.80

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Solution

The fourth proportional to 7,282.80, 10,926.72 and 2,602.80 is: 3,905.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,282.80 : 10,926.72 = 2,602.80 : x
  2. Step 2: Convert to fraction form
    7,282.80/10,926.72 = 2,602.80/x
  3. Step 3: Cross multiply
    7,282.80x = 10,926.72 × 2,602.80
  4. Step 4: Simplify right side
    7,282.80x = 28,440,066.82
  5. Step 5: Solve for x
    x = 28,440,066.82/7,282.80
  6. Step 6: Final answer
    x = 3,905.10

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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.