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Finding the Fourth Proportional to 26,399.48, 39,604.48 and 8,868.64

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Solution

The fourth proportional to 26,399.48, 39,604.48 and 8,868.64 is: 13,304.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,399.48 : 39,604.48 = 8,868.64 : x
  2. Step 2: Convert to fraction form
    26,399.48/39,604.48 = 8,868.64/x
  3. Step 3: Cross multiply
    26,399.48x = 39,604.48 × 8,868.64
  4. Step 4: Simplify right side
    26,399.48x = 351,237,875.51
  5. Step 5: Solve for x
    x = 351,237,875.51/26,399.48
  6. Step 6: Final answer
    x = 13,304.73

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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.