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Finding the Fourth Proportional to 10,660.62, 15,984.08 and 4,424.93

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Solution

The fourth proportional to 10,660.62, 15,984.08 and 4,424.93 is: 6,634.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,660.62 : 15,984.08 = 4,424.93 : x
  2. Step 2: Convert to fraction form
    10,660.62/15,984.08 = 4,424.93/x
  3. Step 3: Cross multiply
    10,660.62x = 15,984.08 × 4,424.93
  4. Step 4: Simplify right side
    10,660.62x = 70,728,435.11
  5. Step 5: Solve for x
    x = 70,728,435.11/10,660.62
  6. Step 6: Final answer
    x = 6,634.55

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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.