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Finding the Fourth Proportional to 13,608,666.45, 20,413,000.08 and 13,608,666.45

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Solution

The fourth proportional to 13,608,666.45, 20,413,000.08 and 13,608,666.45 is: 20,413,000.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,608,666.45 : 20,413,000.08 = 13,608,666.45 : x
  2. Step 2: Convert to fraction form
    13,608,666.45/20,413,000.08 = 13,608,666.45/x
  3. Step 3: Cross multiply
    13,608,666.45x = 20,413,000.08 × 13,608,666.45
  4. Step 4: Simplify right side
    13,608,666.45x = 277,793,709,332,543.28
  5. Step 5: Solve for x
    x = 277,793,709,332,543.28/13,608,666.45
  6. Step 6: Final answer
    x = 20,413,000.08

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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.