Home / 25,768.12-35,588.08-20,748.96

Finding the Fourth Proportional to 25,768.12, 35,588.08 and 20,748.96

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Solution

The fourth proportional to 25,768.12, 35,588.08 and 20,748.96 is: 28,656.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,768.12 : 35,588.08 = 20,748.96 : x
  2. Step 2: Convert to fraction form
    25,768.12/35,588.08 = 20,748.96/x
  3. Step 3: Cross multiply
    25,768.12x = 35,588.08 × 20,748.96
  4. Step 4: Simplify right side
    25,768.12x = 738,415,648.40
  5. Step 5: Solve for x
    x = 738,415,648.40/25,768.12
  6. Step 6: Final answer
    x = 28,656.17

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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.