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Finding the Fourth Proportional to 10,754,465.80, 16,131,698.70 and 9,578,734.60

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Solution

The fourth proportional to 10,754,465.80, 16,131,698.70 and 9,578,734.60 is: 14,368,101.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,754,465.80 : 16,131,698.70 = 9,578,734.60 : x
  2. Step 2: Convert to fraction form
    10,754,465.80/16,131,698.70 = 9,578,734.60/x
  3. Step 3: Cross multiply
    10,754,465.80x = 16,131,698.70 × 9,578,734.60
  4. Step 4: Simplify right side
    10,754,465.80x = 154,521,260,494,465
  5. Step 5: Solve for x
    x = 154,521,260,494,465/10,754,465.80
  6. Step 6: Final answer
    x = 14,368,101.90

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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.