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Finding the Fourth Proportional to 16,488,602.80, 24,732,904.20 and 12,183,930.70

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Solution

The fourth proportional to 16,488,602.80, 24,732,904.20 and 12,183,930.70 is: 18,275,896.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,488,602.80 : 24,732,904.20 = 12,183,930.70 : x
  2. Step 2: Convert to fraction form
    16,488,602.80/24,732,904.20 = 12,183,930.70/x
  3. Step 3: Cross multiply
    16,488,602.80x = 24,732,904.20 × 12,183,930.70
  4. Step 4: Simplify right side
    16,488,602.80x = 301,343,990,782,538.94
  5. Step 5: Solve for x
    x = 301,343,990,782,538.94/16,488,602.80
  6. Step 6: Final answer
    x = 18,275,896.05

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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.