Home / 35,679.20-49,237.28-19,764.68

Finding the Fourth Proportional to 35,679.20, 49,237.28 and 19,764.68

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Solution

The fourth proportional to 35,679.20, 49,237.28 and 19,764.68 is: 27,275.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,679.20 : 49,237.28 = 19,764.68 : x
  2. Step 2: Convert to fraction form
    35,679.20/49,237.28 = 19,764.68/x
  3. Step 3: Cross multiply
    35,679.20x = 49,237.28 × 19,764.68
  4. Step 4: Simplify right side
    35,679.20x = 973,158,738.26
  5. Step 5: Solve for x
    x = 973,158,738.26/35,679.20
  6. Step 6: Final answer
    x = 27,275.24

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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.