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Finding the Fourth Proportional to 16,697,659.05, 25,029,007.47 and 6,987,835.22

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Solution

The fourth proportional to 16,697,659.05, 25,029,007.47 and 6,987,835.22 is: 10,474,437.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,697,659.05 : 25,029,007.47 = 6,987,835.22 : x
  2. Step 2: Convert to fraction form
    16,697,659.05/25,029,007.47 = 6,987,835.22/x
  3. Step 3: Cross multiply
    16,697,659.05x = 25,029,007.47 × 6,987,835.22
  4. Step 4: Simplify right side
    16,697,659.05x = 174,898,579,795,364.03
  5. Step 5: Solve for x
    x = 174,898,579,795,364.03/16,697,659.05
  6. Step 6: Final answer
    x = 10,474,437.12

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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.