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Finding the Fourth Proportional to 29,799.48, 44,715.60 and 18,120.90

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Solution

The fourth proportional to 29,799.48, 44,715.60 and 18,120.90 is: 27,191.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,799.48 : 44,715.60 = 18,120.90 : x
  2. Step 2: Convert to fraction form
    29,799.48/44,715.60 = 18,120.90/x
  3. Step 3: Cross multiply
    29,799.48x = 44,715.60 × 18,120.90
  4. Step 4: Simplify right side
    29,799.48x = 810,286,916.04
  5. Step 5: Solve for x
    x = 810,286,916.04/29,799.48
  6. Step 6: Final answer
    x = 27,191.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.