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Finding the Fourth Proportional to 8,883.99, 12,259.82 and 4,905.10

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Solution

The fourth proportional to 8,883.99, 12,259.82 and 4,905.10 is: 6,768.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,883.99 : 12,259.82 = 4,905.10 : x
  2. Step 2: Convert to fraction form
    8,883.99/12,259.82 = 4,905.10/x
  3. Step 3: Cross multiply
    8,883.99x = 12,259.82 × 4,905.10
  4. Step 4: Simplify right side
    8,883.99x = 60,135,643.08
  5. Step 5: Solve for x
    x = 60,135,643.08/8,883.99
  6. Step 6: Final answer
    x = 6,768.99

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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.