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Finding the Fourth Proportional to 7,984.67, 11,018.48 and 4,627.22

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Solution

The fourth proportional to 7,984.67, 11,018.48 and 4,627.22 is: 6,385.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,984.67 : 11,018.48 = 4,627.22 : x
  2. Step 2: Convert to fraction form
    7,984.67/11,018.48 = 4,627.22/x
  3. Step 3: Cross multiply
    7,984.67x = 11,018.48 × 4,627.22
  4. Step 4: Simplify right side
    7,984.67x = 50,984,852.80
  5. Step 5: Solve for x
    x = 50,984,852.80/7,984.67
  6. Step 6: Final answer
    x = 6,385.35

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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.