Home / 33,079.20-45,648.36-18,931.56

Finding the Fourth Proportional to 33,079.20, 45,648.36 and 18,931.56

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Solution

The fourth proportional to 33,079.20, 45,648.36 and 18,931.56 is: 26,125.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,079.20 : 45,648.36 = 18,931.56 : x
  2. Step 2: Convert to fraction form
    33,079.20/45,648.36 = 18,931.56/x
  3. Step 3: Cross multiply
    33,079.20x = 45,648.36 × 18,931.56
  4. Step 4: Simplify right side
    33,079.20x = 864,194,666.24
  5. Step 5: Solve for x
    x = 864,194,666.24/33,079.20
  6. Step 6: Final answer
    x = 26,125.02

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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.