Home / 20,069.48-30,108.63-6,742.00

Finding the Fourth Proportional to 20,069.48, 30,108.63 and 6,742.00

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Solution

The fourth proportional to 20,069.48, 30,108.63 and 6,742.00 is: 10,114.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,069.48 : 30,108.63 = 6,742.00 : x
  2. Step 2: Convert to fraction form
    20,069.48/30,108.63 = 6,742.00/x
  3. Step 3: Cross multiply
    20,069.48x = 30,108.63 × 6,742.00
  4. Step 4: Simplify right side
    20,069.48x = 202,992,239.09
  5. Step 5: Solve for x
    x = 202,992,239.09/20,069.48
  6. Step 6: Final answer
    x = 10,114.47

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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.