Home / 56,380.56-84,564.36-18,939.12

Finding the Fourth Proportional to 56,380.56, 84,564.36 and 18,939.12

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Solution

The fourth proportional to 56,380.56, 84,564.36 and 18,939.12 is: 28,406.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,380.56 : 84,564.36 = 18,939.12 : x
  2. Step 2: Convert to fraction form
    56,380.56/84,564.36 = 18,939.12/x
  3. Step 3: Cross multiply
    56,380.56x = 84,564.36 × 18,939.12
  4. Step 4: Simplify right side
    56,380.56x = 1,601,574,561.76
  5. Step 5: Solve for x
    x = 1,601,574,561.76/56,380.56
  6. Step 6: Final answer
    x = 28,406.50

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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.