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Finding the Fourth Proportional to 16,609,672.80, 24,918,008.40 and 7,020,115.20

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Solution

The fourth proportional to 16,609,672.80, 24,918,008.40 and 7,020,115.20 is: 10,531,651.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,609,672.80 : 24,918,008.40 = 7,020,115.20 : x
  2. Step 2: Convert to fraction form
    16,609,672.80/24,918,008.40 = 7,020,115.20/x
  3. Step 3: Cross multiply
    16,609,672.80x = 24,918,008.40 × 7,020,115.20
  4. Step 4: Simplify right side
    16,609,672.80x = 174,927,289,522,567.69
  5. Step 5: Solve for x
    x = 174,927,289,522,567.69/16,609,672.80
  6. Step 6: Final answer
    x = 10,531,651.74

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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.