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Finding the Fourth Proportional to 9,996.60, 14,982.90 and 4,150.20

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Solution

The fourth proportional to 9,996.60, 14,982.90 and 4,150.20 is: 6,220.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,996.60 : 14,982.90 = 4,150.20 : x
  2. Step 2: Convert to fraction form
    9,996.60/14,982.90 = 4,150.20/x
  3. Step 3: Cross multiply
    9,996.60x = 14,982.90 × 4,150.20
  4. Step 4: Simplify right side
    9,996.60x = 62,182,031.58
  5. Step 5: Solve for x
    x = 62,182,031.58/9,996.60
  6. Step 6: Final answer
    x = 6,220.32

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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.