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Finding the Fourth Proportional to 16,845,649.80, 25,268,474.70 and 12,864,337.80

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Solution

The fourth proportional to 16,845,649.80, 25,268,474.70 and 12,864,337.80 is: 19,296,506.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,845,649.80 : 25,268,474.70 = 12,864,337.80 : x
  2. Step 2: Convert to fraction form
    16,845,649.80/25,268,474.70 = 12,864,337.80/x
  3. Step 3: Cross multiply
    16,845,649.80x = 25,268,474.70 × 12,864,337.80
  4. Step 4: Simplify right side
    16,845,649.80x = 325,062,194,231,553.69
  5. Step 5: Solve for x
    x = 325,062,194,231,553.69/16,845,649.80
  6. Step 6: Final answer
    x = 19,296,506.70

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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.