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Finding the Fourth Proportional to 30,673.90, 45,986.55 and 16,822.90

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Solution

The fourth proportional to 30,673.90, 45,986.55 and 16,822.90 is: 25,221.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,673.90 : 45,986.55 = 16,822.90 : x
  2. Step 2: Convert to fraction form
    30,673.90/45,986.55 = 16,822.90/x
  3. Step 3: Cross multiply
    30,673.90x = 45,986.55 × 16,822.90
  4. Step 4: Simplify right side
    30,673.90x = 773,627,132.00
  5. Step 5: Solve for x
    x = 773,627,132.00/30,673.90
  6. Step 6: Final answer
    x = 25,221.02

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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.