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Finding the Fourth Proportional to 8,755,659.52, 13,132,964.40 and 2,690,448.64

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Solution

The fourth proportional to 8,755,659.52, 13,132,964.40 and 2,690,448.64 is: 4,035,511.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,755,659.52 : 13,132,964.40 = 2,690,448.64 : x
  2. Step 2: Convert to fraction form
    8,755,659.52/13,132,964.40 = 2,690,448.64/x
  3. Step 3: Cross multiply
    8,755,659.52x = 13,132,964.40 × 2,690,448.64
  4. Step 4: Simplify right side
    8,755,659.52x = 35,333,566,209,148.42
  5. Step 5: Solve for x
    x = 35,333,566,209,148.42/8,755,659.52
  6. Step 6: Final answer
    x = 4,035,511.67

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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.