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Finding the Fourth Proportional to 8,443.68, 11,645.28 and 6,354.24

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Solution

The fourth proportional to 8,443.68, 11,645.28 and 6,354.24 is: 8,763.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,443.68 : 11,645.28 = 6,354.24 : x
  2. Step 2: Convert to fraction form
    8,443.68/11,645.28 = 6,354.24/x
  3. Step 3: Cross multiply
    8,443.68x = 11,645.28 × 6,354.24
  4. Step 4: Simplify right side
    8,443.68x = 73,996,903.99
  5. Step 5: Solve for x
    x = 73,996,903.99/8,443.68
  6. Step 6: Final answer
    x = 8,763.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.