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Finding the Fourth Proportional to 22,113.92, 30,495.48 and 18,765.92

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Solution

The fourth proportional to 22,113.92, 30,495.48 and 18,765.92 is: 25,878.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,113.92 : 30,495.48 = 18,765.92 : x
  2. Step 2: Convert to fraction form
    22,113.92/30,495.48 = 18,765.92/x
  3. Step 3: Cross multiply
    22,113.92x = 30,495.48 × 18,765.92
  4. Step 4: Simplify right side
    22,113.92x = 572,275,738.04
  5. Step 5: Solve for x
    x = 572,275,738.04/22,113.92
  6. Step 6: Final answer
    x = 25,878.53

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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.