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Finding the Fourth Proportional to 8,764,516.60, 13,146,774.90 and 2,781,489.40

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Solution

The fourth proportional to 8,764,516.60, 13,146,774.90 and 2,781,489.40 is: 4,172,234.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,764,516.60 : 13,146,774.90 = 2,781,489.40 : x
  2. Step 2: Convert to fraction form
    8,764,516.60/13,146,774.90 = 2,781,489.40/x
  3. Step 3: Cross multiply
    8,764,516.60x = 13,146,774.90 × 2,781,489.40
  4. Step 4: Simplify right side
    8,764,516.60x = 36,567,615,028,536.06
  5. Step 5: Solve for x
    x = 36,567,615,028,536.06/8,764,516.60
  6. Step 6: Final answer
    x = 4,172,234.10

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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.