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Finding the Fourth Proportional to 17,992,947.80, 26,989,421.70 and 16,257,344.60

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Solution

The fourth proportional to 17,992,947.80, 26,989,421.70 and 16,257,344.60 is: 24,386,016.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,992,947.80 : 26,989,421.70 = 16,257,344.60 : x
  2. Step 2: Convert to fraction form
    17,992,947.80/26,989,421.70 = 16,257,344.60/x
  3. Step 3: Cross multiply
    17,992,947.80x = 26,989,421.70 × 16,257,344.60
  4. Step 4: Simplify right side
    17,992,947.80x = 438,776,329,131,617.81
  5. Step 5: Solve for x
    x = 438,776,329,131,617.81/17,992,947.80
  6. Step 6: Final answer
    x = 24,386,016.90

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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.