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Finding the Fourth Proportional to 6,655.45, 9,962.40 and 4,902.43

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Solution

The fourth proportional to 6,655.45, 9,962.40 and 4,902.43 is: 7,338.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,655.45 : 9,962.40 = 4,902.43 : x
  2. Step 2: Convert to fraction form
    6,655.45/9,962.40 = 4,902.43/x
  3. Step 3: Cross multiply
    6,655.45x = 9,962.40 × 4,902.43
  4. Step 4: Simplify right side
    6,655.45x = 48,839,968.63
  5. Step 5: Solve for x
    x = 48,839,968.63/6,655.45
  6. Step 6: Final answer
    x = 7,338.34

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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.