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Finding the Fourth Proportional to 17,210,019.20, 25,815,028.80 and 16,200,281.30

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Solution

The fourth proportional to 17,210,019.20, 25,815,028.80 and 16,200,281.30 is: 24,300,421.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,210,019.20 : 25,815,028.80 = 16,200,281.30 : x
  2. Step 2: Convert to fraction form
    17,210,019.20/25,815,028.80 = 16,200,281.30/x
  3. Step 3: Cross multiply
    17,210,019.20x = 25,815,028.80 × 16,200,281.30
  4. Step 4: Simplify right side
    17,210,019.20x = 418,210,728,327,601.50
  5. Step 5: Solve for x
    x = 418,210,728,327,601.50/17,210,019.20
  6. Step 6: Final answer
    x = 24,300,421.95

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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.