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Finding the Fourth Proportional to 8,799.66, 12,138.93 and 5,441.40

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Solution

The fourth proportional to 8,799.66, 12,138.93 and 5,441.40 is: 7,506.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,799.66 : 12,138.93 = 5,441.40 : x
  2. Step 2: Convert to fraction form
    8,799.66/12,138.93 = 5,441.40/x
  3. Step 3: Cross multiply
    8,799.66x = 12,138.93 × 5,441.40
  4. Step 4: Simplify right side
    8,799.66x = 66,052,773.70
  5. Step 5: Solve for x
    x = 66,052,773.70/8,799.66
  6. Step 6: Final answer
    x = 7,506.29

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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.