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Finding the Fourth Proportional to 6,663,322.15, 9,995,593.19 and 1,870,979.09

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Solution

The fourth proportional to 6,663,322.15, 9,995,593.19 and 1,870,979.09 is: 2,806,639.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,663,322.15 : 9,995,593.19 = 1,870,979.09 : x
  2. Step 2: Convert to fraction form
    6,663,322.15/9,995,593.19 = 1,870,979.09/x
  3. Step 3: Cross multiply
    6,663,322.15x = 9,995,593.19 × 1,870,979.09
  4. Step 4: Simplify right side
    6,663,322.15x = 18,701,545,850,636.40
  5. Step 5: Solve for x
    x = 18,701,545,850,636.40/6,663,322.15
  6. Step 6: Final answer
    x = 2,806,639.91

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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.