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Finding the Fourth Proportional to 16,808,798.40, 25,213,197.60 and 16,682,827.20

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Solution

The fourth proportional to 16,808,798.40, 25,213,197.60 and 16,682,827.20 is: 25,024,240.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,808,798.40 : 25,213,197.60 = 16,682,827.20 : x
  2. Step 2: Convert to fraction form
    16,808,798.40/25,213,197.60 = 16,682,827.20/x
  3. Step 3: Cross multiply
    16,808,798.40x = 25,213,197.60 × 16,682,827.20
  4. Step 4: Simplify right side
    16,808,798.40x = 420,627,418,720,254.75
  5. Step 5: Solve for x
    x = 420,627,418,720,254.75/16,808,798.40
  6. Step 6: Final answer
    x = 25,024,240.80

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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.