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Finding the Fourth Proportional to 19,266.40, 28,899.60 and 16,447.60

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Solution

The fourth proportional to 19,266.40, 28,899.60 and 16,447.60 is: 24,671.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,266.40 : 28,899.60 = 16,447.60 : x
  2. Step 2: Convert to fraction form
    19,266.40/28,899.60 = 16,447.60/x
  3. Step 3: Cross multiply
    19,266.40x = 28,899.60 × 16,447.60
  4. Step 4: Simplify right side
    19,266.40x = 475,329,060.96
  5. Step 5: Solve for x
    x = 475,329,060.96/19,266.40
  6. Step 6: Final answer
    x = 24,671.40

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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.