Home / 26,599.72-36,720.90-20,617.96

Finding the Fourth Proportional to 26,599.72, 36,720.90 and 20,617.96

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Solution

The fourth proportional to 26,599.72, 36,720.90 and 20,617.96 is: 28,463.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,599.72 : 36,720.90 = 20,617.96 : x
  2. Step 2: Convert to fraction form
    26,599.72/36,720.90 = 20,617.96/x
  3. Step 3: Cross multiply
    26,599.72x = 36,720.90 × 20,617.96
  4. Step 4: Simplify right side
    26,599.72x = 757,110,047.36
  5. Step 5: Solve for x
    x = 757,110,047.36/26,599.72
  6. Step 6: Final answer
    x = 28,463.08

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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.