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Finding the Fourth Proportional to 8,834,884.65, 12,194,305.79 and 5,400,005.13

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Solution

The fourth proportional to 8,834,884.65, 12,194,305.79 and 5,400,005.13 is: 7,453,330.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,834,884.65 : 12,194,305.79 = 5,400,005.13 : x
  2. Step 2: Convert to fraction form
    8,834,884.65/12,194,305.79 = 5,400,005.13/x
  3. Step 3: Cross multiply
    8,834,884.65x = 12,194,305.79 × 5,400,005.13
  4. Step 4: Simplify right side
    8,834,884.65x = 65,849,313,795,788.68
  5. Step 5: Solve for x
    x = 65,849,313,795,788.68/8,834,884.65
  6. Step 6: Final answer
    x = 7,453,330.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.