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Finding the Fourth Proportional to 7,783,234.80, 11,668,631.40 and 3,291,817.20

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Solution

The fourth proportional to 7,783,234.80, 11,668,631.40 and 3,291,817.20 is: 4,935,094.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,783,234.80 : 11,668,631.40 = 3,291,817.20 : x
  2. Step 2: Convert to fraction form
    7,783,234.80/11,668,631.40 = 3,291,817.20/x
  3. Step 3: Cross multiply
    7,783,234.80x = 11,668,631.40 × 3,291,817.20
  4. Step 4: Simplify right side
    7,783,234.80x = 38,411,001,542,980.09
  5. Step 5: Solve for x
    x = 38,411,001,542,980.09/7,783,234.80
  6. Step 6: Final answer
    x = 4,935,094.79

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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.