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Finding the Fourth Proportional to 8,514,703.92, 12,773,738.40 and 3,123,404.40

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Solution

The fourth proportional to 8,514,703.92, 12,773,738.40 and 3,123,404.40 is: 4,685,723.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,514,703.92 : 12,773,738.40 = 3,123,404.40 : x
  2. Step 2: Convert to fraction form
    8,514,703.92/12,773,738.40 = 3,123,404.40/x
  3. Step 3: Cross multiply
    8,514,703.92x = 12,773,738.40 × 3,123,404.40
  4. Step 4: Simplify right side
    8,514,703.92x = 39,897,550,723,008.96
  5. Step 5: Solve for x
    x = 39,897,550,723,008.96/8,514,703.92
  6. Step 6: Final answer
    x = 4,685,723.79

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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.