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Finding the Fourth Proportional to 8,996.40, 13,495.20 and 7,349.40

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Solution

The fourth proportional to 8,996.40, 13,495.20 and 7,349.40 is: 11,024.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,996.40 : 13,495.20 = 7,349.40 : x
  2. Step 2: Convert to fraction form
    8,996.40/13,495.20 = 7,349.40/x
  3. Step 3: Cross multiply
    8,996.40x = 13,495.20 × 7,349.40
  4. Step 4: Simplify right side
    8,996.40x = 99,181,622.88
  5. Step 5: Solve for x
    x = 99,181,622.88/8,996.40
  6. Step 6: Final answer
    x = 11,024.59

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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.