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Finding the Fourth Proportional to 8,775.80, 12,109.96 and 4,796.07

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Solution

The fourth proportional to 8,775.80, 12,109.96 and 4,796.07 is: 6,618.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,775.80 : 12,109.96 = 4,796.07 : x
  2. Step 2: Convert to fraction form
    8,775.80/12,109.96 = 4,796.07/x
  3. Step 3: Cross multiply
    8,775.80x = 12,109.96 × 4,796.07
  4. Step 4: Simplify right side
    8,775.80x = 58,080,215.86
  5. Step 5: Solve for x
    x = 58,080,215.86/8,775.80
  6. Step 6: Final answer
    x = 6,618.22

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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.