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Finding the Fourth Proportional to 16,685,764.80, 25,028,647.20 and 5,915,227.20

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Solution

The fourth proportional to 16,685,764.80, 25,028,647.20 and 5,915,227.20 is: 8,872,840.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,685,764.80 : 25,028,647.20 = 5,915,227.20 : x
  2. Step 2: Convert to fraction form
    16,685,764.80/25,028,647.20 = 5,915,227.20/x
  3. Step 3: Cross multiply
    16,685,764.80x = 25,028,647.20 × 5,915,227.20
  4. Step 4: Simplify right side
    16,685,764.80x = 148,050,134,696,643.84
  5. Step 5: Solve for x
    x = 148,050,134,696,643.84/16,685,764.80
  6. Step 6: Final answer
    x = 8,872,840.80

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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.