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Finding the Fourth Proportional to 8,643,795.06, 12,963,920.64 and 3,177,005.82

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Solution

The fourth proportional to 8,643,795.06, 12,963,920.64 and 3,177,005.82 is: 4,764,857.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,643,795.06 : 12,963,920.64 = 3,177,005.82 : x
  2. Step 2: Convert to fraction form
    8,643,795.06/12,963,920.64 = 3,177,005.82/x
  3. Step 3: Cross multiply
    8,643,795.06x = 12,963,920.64 × 3,177,005.82
  4. Step 4: Simplify right side
    8,643,795.06x = 41,186,451,323,298.12
  5. Step 5: Solve for x
    x = 41,186,451,323,298.12/8,643,795.06
  6. Step 6: Final answer
    x = 4,764,857.45

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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.