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Finding the Fourth Proportional to 18,721,969.30, 28,082,953.95 and 16,596,205.30

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Solution

The fourth proportional to 18,721,969.30, 28,082,953.95 and 16,596,205.30 is: 24,894,307.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,721,969.30 : 28,082,953.95 = 16,596,205.30 : x
  2. Step 2: Convert to fraction form
    18,721,969.30/28,082,953.95 = 16,596,205.30/x
  3. Step 3: Cross multiply
    18,721,969.30x = 28,082,953.95 × 16,596,205.30
  4. Step 4: Simplify right side
    18,721,969.30x = 466,070,469,184,645.94
  5. Step 5: Solve for x
    x = 466,070,469,184,645.94/18,721,969.30
  6. Step 6: Final answer
    x = 24,894,307.95

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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.