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Finding the Fourth Proportional to 8,640,567.96, 12,946,650.96 and 2,957,692.20

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Solution

The fourth proportional to 8,640,567.96, 12,946,650.96 and 2,957,692.20 is: 4,431,677.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,640,567.96 : 12,946,650.96 = 2,957,692.20 : x
  2. Step 2: Convert to fraction form
    8,640,567.96/12,946,650.96 = 2,957,692.20/x
  3. Step 3: Cross multiply
    8,640,567.96x = 12,946,650.96 × 2,957,692.20
  4. Step 4: Simplify right side
    8,640,567.96x = 38,292,208,560,514.52
  5. Step 5: Solve for x
    x = 38,292,208,560,514.52/8,640,567.96
  6. Step 6: Final answer
    x = 4,431,677.26

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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.