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Finding the Fourth Proportional to 16,804,987.70, 25,207,481.55 and 16,645,555.40

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Solution

The fourth proportional to 16,804,987.70, 25,207,481.55 and 16,645,555.40 is: 24,968,333.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,804,987.70 : 25,207,481.55 = 16,645,555.40 : x
  2. Step 2: Convert to fraction form
    16,804,987.70/25,207,481.55 = 16,645,555.40/x
  3. Step 3: Cross multiply
    16,804,987.70x = 25,207,481.55 × 16,645,555.40
  4. Step 4: Simplify right side
    16,804,987.70x = 419,592,530,635,002.88
  5. Step 5: Solve for x
    x = 419,592,530,635,002.88/16,804,987.70
  6. Step 6: Final answer
    x = 24,968,333.10

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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.