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Finding the Fourth Proportional to 18,703.53, 28,035.57 and 6,220.22

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Solution

The fourth proportional to 18,703.53, 28,035.57 and 6,220.22 is: 9,323.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,703.53 : 28,035.57 = 6,220.22 : x
  2. Step 2: Convert to fraction form
    18,703.53/28,035.57 = 6,220.22/x
  3. Step 3: Cross multiply
    18,703.53x = 28,035.57 × 6,220.22
  4. Step 4: Simplify right side
    18,703.53x = 174,387,296.37
  5. Step 5: Solve for x
    x = 174,387,296.37/18,703.53
  6. Step 6: Final answer
    x = 9,323.76

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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.