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Finding the Fourth Proportional to 19,241.80, 28,862.70 and 16,649.80

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Solution

The fourth proportional to 19,241.80, 28,862.70 and 16,649.80 is: 24,974.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,241.80 : 28,862.70 = 16,649.80 : x
  2. Step 2: Convert to fraction form
    19,241.80/28,862.70 = 16,649.80/x
  3. Step 3: Cross multiply
    19,241.80x = 28,862.70 × 16,649.80
  4. Step 4: Simplify right side
    19,241.80x = 480,558,182.46
  5. Step 5: Solve for x
    x = 480,558,182.46/19,241.80
  6. Step 6: Final answer
    x = 24,974.70

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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.