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Finding the Fourth Proportional to 8,708,654.30, 13,047,235.05 and 7,448,942.30

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Solution

The fourth proportional to 8,708,654.30, 13,047,235.05 and 7,448,942.30 is: 11,159,944.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,708,654.30 : 13,047,235.05 = 7,448,942.30 : x
  2. Step 2: Convert to fraction form
    8,708,654.30/13,047,235.05 = 7,448,942.30/x
  3. Step 3: Cross multiply
    8,708,654.30x = 13,047,235.05 × 7,448,942.30
  4. Step 4: Simplify right side
    8,708,654.30x = 97,188,101,061,987.62
  5. Step 5: Solve for x
    x = 97,188,101,061,987.62/8,708,654.30
  6. Step 6: Final answer
    x = 11,159,944.78

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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.