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Finding the Fourth Proportional to 8,064,312.80, 12,101,998.80 and 3,579,807.20

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Solution

The fourth proportional to 8,064,312.80, 12,101,998.80 and 3,579,807.20 is: 5,372,165.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,064,312.80 : 12,101,998.80 = 3,579,807.20 : x
  2. Step 2: Convert to fraction form
    8,064,312.80/12,101,998.80 = 3,579,807.20/x
  3. Step 3: Cross multiply
    8,064,312.80x = 12,101,998.80 × 3,579,807.20
  4. Step 4: Simplify right side
    8,064,312.80x = 43,322,822,438,631.37
  5. Step 5: Solve for x
    x = 43,322,822,438,631.37/8,064,312.80
  6. Step 6: Final answer
    x = 5,372,165.43

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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.