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Finding the Fourth Proportional to 11,579,901.60, 17,357,410.80 and 4,388,656.80

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Solution

The fourth proportional to 11,579,901.60, 17,357,410.80 and 4,388,656.80 is: 6,578,269.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,579,901.60 : 17,357,410.80 = 4,388,656.80 : x
  2. Step 2: Convert to fraction form
    11,579,901.60/17,357,410.80 = 4,388,656.80/x
  3. Step 3: Cross multiply
    11,579,901.60x = 17,357,410.80 × 4,388,656.80
  4. Step 4: Simplify right side
    11,579,901.60x = 76,175,718,937,813.44
  5. Step 5: Solve for x
    x = 76,175,718,937,813.44/11,579,901.60
  6. Step 6: Final answer
    x = 6,578,269.97

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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.