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Finding the Fourth Proportional to 17,312,605.20, 25,968,907.80 and 16,651,256.40

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Solution

The fourth proportional to 17,312,605.20, 25,968,907.80 and 16,651,256.40 is: 24,976,884.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,312,605.20 : 25,968,907.80 = 16,651,256.40 : x
  2. Step 2: Convert to fraction form
    17,312,605.20/25,968,907.80 = 16,651,256.40/x
  3. Step 3: Cross multiply
    17,312,605.20x = 25,968,907.80 × 16,651,256.40
  4. Step 4: Simplify right side
    17,312,605.20x = 432,414,942,205,759.94
  5. Step 5: Solve for x
    x = 432,414,942,205,759.94/17,312,605.20
  6. Step 6: Final answer
    x = 24,976,884.60

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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.